Program for reading bad DVD discs. Copying damaged files. When the system won't boot

Instructions

As a rule, the main reason for failure when reading information from a disk is its contamination. The working surface of the CD may contain fingerprints and dried drops from drinks. Even one such drop can make the disk unreadable.

First of all, carefully inspect the disc and remove any traces of dirt using a soft cloth and water. Wipe the disk dry and try to start it. As a rule, in the vast majority of cases this is enough for the disk to open normally.

If you have wiped the disk, but it still cannot be opened, the cause may be scratches on its working side. Inspect the CD: if there are no deep scratches on it that have damaged the working layer (such damage cannot be repaired), you can try polishing the surface of the disc with a soft cloth with toothpaste applied to it.

When polishing a disc, perform all movements only across the scratches, but not along them. Most scratches go along the tracks of the disc, so you need to polish using movements from the center of the disc to the edges and back. As a rule, half an hour of such work is enough for the disk to begin to open again. Before checking, do not forget to rinse, dry and wipe it thoroughly.

If the procedures described above did not help, you should use special utilities to save the information recorded on the disk. First you should try the simplest ones - for example, AnyReader, you can find this program on the Internet. It works well and quickly, and allows you to recover files even if the disk damage is not too serious.

Launch AnyReader, select one of the recovery options, most often this is the first one - “Copying files from damaged media”. After selecting this item, click the “Next” button. The utility will open the disk, select in the list that appears the files and directories that need to be saved. Select a folder to save, click "Next". The copying process proceeds quite quickly; upon completion, the program will inform you about which files were recovered.

NSCopy, File Salvage, Max have similar capabilities. Data Recovery. If they fail to recover information from the disk, use the wonderful IsoBuster utility. Thanks to a special operating algorithm, this program can recover information even from heavily damaged disks. The disadvantage of the program is that it is very slow; restoring a DVD disc can take more than one hour.

If you need to save a disc with video recordings, try rewriting it using the Alcogol 120% program. This program can copy disks, skipping bad sectors - if the corresponding box is checked in the settings. Unlike programs where the absolute integrity of files is important, minor glitches during video playback are not so critical and are quite acceptable.

CDCheck 3.1.10.0 - Works with all files - on hard drives, CDs, floppy disks. Another innovation is the comparison of a CD-ROM with a copy located on a screw (produces bitwise comparison data on CD with their copies on hard drive.

DeadDiscDoctor 1.0- a utility for copying files and data from corrupted sources. Programs made to suppress (input/output error and file path error). the utility reads the file in 15kb blocks and when the device (CD-ROM, for example) generates an error, the block size is reduced tens of times, everything is repeated, and so on until the block is read without errors. If the block size reaches the minimum, then the utility skips one byte and starts reading from the next. After successful reading, the block size increases tens of times and so on until it reaches a maximum of 10 kb.

File Salvage 2.0- a utility for reading damaged and corrupted disks from a group of Light Alloy programmers.
The File Salvage utility can copy any damaged data and files from any media. Unreadable clusters are replaced with zeros. During reading, you can stop the process and then start it again, even on a different drive.

Non-Stop Copy v1.03- the utility allows you to copy damaged data and files from any media, and unreadable sectors are replaced with zero bytes. Also,
tries to recover information from bad sectors. The utility does not use any methods for reading information, as a result of which it will work correctly on any type of storage media and on any data systems supported by the operating system.

Roadkil's Unstoppable Copier 2.2- A utility that recovers data from damaged hard drives, CDs, floppy disks, floppy media.

Skopin FileCopier- during my testing it didn’t show itself on the very good side. When copying good disc the speed was very slow - I counted a 700 MB blank with a movie in 13 minutes. When copying a damaged disk, the processor load was 100. I did not wait for the copying to finish.

Super Copy2.1- A very simple utility that reads any disk in 20 minutes with large data losses, an ideal utility for quick copying and if quality doesn't matter to you.

Interface language: English Russian
Size: 5.02 MB
Medicine: Present

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The laser disc has undergone significant changes since its inception, evolving from a CD with a data capacity of 650 megabytes to a capacious Blu-ray capable of storing up to 50 gigabytes and more. However, despite such obvious progress, optical media has not gotten rid of many of the problems and shortcomings that have plagued it from the very beginning. For example, after recording another disc (even if the recording drive that was used was completely new), it is impossible to say with one hundred percent certainty that all the data was correctly copied to the disk. Another inconvenience of working with optical media is related to the growing volume of information. It has become many times more difficult to navigate which drive to look for a particular program or document on. And finally, the most important “disadvantages” of a laser disc are data loss due to mechanical damage (scratched surface of the disc) or as a result of a recording error. However, so far there is no serious alternative to optical media, so it is necessary to look for ways to solve these problems, at least partially. Utilities with which you can evaluate the condition of disks and recover data from them will be discussed in today’s review.

CDCheck 3.1

Developer: Mitja Perko
Distribution size: 1.5 MB
Spreading: shareware
Interface: Russian It is possible to draw a conclusion about the condition of the disk “by eye” only in the case when obvious signs are visible on its surface. mechanical damage, indicating careless handling of the media. The more scratched and dirty the working side of the disk is, the higher the likelihood of failures when reading data from the media. But even if, after the most thorough inspection, no cracks or scratches are found, this does not indicate that the data from the CDDVD will be read correctly by the device. Recording errors can also occur as a result of a software glitch or due to the failure of the recording device. Many people use a simple way to determine recording quality - the media being tested is inserted into the DVD drive, after which the data from it is copied to HDD. The logic of this “test” is simple - if the data is copied, then the optical disk is in perfect order. Actually this is not true. The fact that the data was copied to the hard drive only means that some information was read by the drive, but the very fact that the copying process is completed does not guarantee that the data on the hard drive is completely identical to the data that was written to the media. You should also not rely entirely on comparing the sizes of the original and copied files - even if they match, the data may differ. Comparing data manually is inconvenient, especially when there are a lot of files on the media, so quality control of recorded discs is best done using special utility, such as CDCheck. One of the main functions of this utility is to determine the integrity of data on the media. For this purpose, the program generates a checksum for files and folders, a unique code for a particular case, by which one can judge the reliability of a copy of the data.

CDCheck works with different types of checksums - MD2, MD4, MD5, Adler32, CRC32, SHA (1, 256, 348, 512), Tiger (128, 160, 192), etc. Before burning a disc, the program can analyze the contents of the future media on the subject of compatibility of data recorded on CD/DVD with ISO image standards. Data verification can be performed either by checksum or by the “source-copy” principle. At the end of the scan, the program can launch an external anti-virus scanner, checking the content for viruses. CDCheck allows you to set the priority of a job, and also has a data recovery function by repeatedly reading disk sectors. When a certain percentage of reliability is reached, which can be set in the program settings, the data can be considered recovered.

By processing data with CDCheck, you can monitor detailed process statistics: average data reading speed, estimated data processing time, number of scanned files and folders. The utility supports working with command line and provides detailed information about the CD/DVD/BD media used.

DiskInternals CD & DVD Recovery 3.5

Developer: DiskInternals Research
Distribution size: 3.5 MB
Spreading: shareware
Interface: English A utility for recovering lost information from optical media is one tool from a whole set various means to recover lost data, which is offered by the developers of DiskInternals Research. This program can work with any optical media: from CD-R and DVR-R, to dual-layer discs and DVD-RAM. CD & DVD Recovery detects "missing" files recorded in ISO9660, UDF and Joliet systems. This data can also be recovered if the data was written to the disk in multi-session mode.

The operation of restoring damaged or deleted data is greatly simplified thanks to the step-by-step wizard included in the program. Following his instructions, you need to select the media whose contents are inaccessible, and then specify the parameters of the files to be restored. So, for example, for a more accurate data search result, you should determine the approximate size of the files to be resuscitated, as well as indicate the approximate time of their creation. These criteria are of particular importance when analyzing a rewritable disc that has many “traces” of old information once recorded on it. this medium. CD & DVD Recovery identifies the location of lost data on a disk and can work with long file names. The program provides access to files from any track, even if the session on the disk was not closed correctly.

CDRoller 8.0

Developer: Digital Atlantic Corp
Distribution size: 6 MB
Spreading: shareware
Interface: English The problem of unreadable disks has given rise to a mass of utilities created to solve it. Some programs are designed to test the quality of recording media, others are designed to read surviving information. Typically, this uses a multiple read method, where the program tries to copy the data from the damaged disk as accurately as possible. However, in practice, these utilities cannot always save the situation. For example, if the file being copied has big size and contains one or more unreadable fragments, then such data may be unsuitable for further use.

The simplest example of such a situation is a damaged DVD with a movie recorded on it. As you know, the contents of the DVD-video format usually look like a Video_ts folder, where menu and navigation files are located, as well as large files with the .vob extension, which contain video and sound. If the unreadable area of the disk is in the place where the vob file was recorded, this file will be partially damaged, resulting in a large fragment of the video being lost. It is possible to partially restore the remaining video. Firstly, you can use additional tools, which can correct errors in the video file code. However, if the damaged area is large, then such utilities will not be able to cope with the recovery. Other programs that can fix a video file will use re-compression, which will inevitably lead to a loss of original quality. The CDRoller utility can solve this problem faster and more efficiently than many other programs. Having copied readable data from such a disk to the hard drive, CDRoller will analyze the vob file and divide it into separate fragments (movie scenes), saving them in the MPEG format familiar to the DVD video standard, without loss of quality. In this case, you can simply exclude the scene with the fragment where the defect is present, and record new disk with the surviving data.

Thanks to the built-in recording module, the disc burning procedure can be performed directly in CDRoller. The program allows you to burn recovered files and folders, videos, as well as ISO image files.

The disk cataloging tool built into the program uses so-called short images (Short CD/DVD Image). In fact, these are not real images, but only data about the contents of the indexed disk - a list of all files and directories on the disk, with a preserved structure. Each time a new disc is read, the program can automatically create such a short image and write it to a specific folder, thus compiling a library of all discs. In the future, if you need to quickly find a specific file, you can use CDRoller to search the entire library of images. The data search tool is implemented very flexibly, search query can be refined using various search criteria. For example, you can set the minimum and maximum size the file being searched, specify the subject of the search (for example, only folders, files, or both), indicate the creation date, etc. Another feature of CDRoller is the ability to work with audio discs. Despite the relative durability of audio discs, sometimes it only takes one tiny scratch for a CD player to refuse to play a particular track or even recognize the disc. In order to save the recording, the program uses digital data extraction (Digital Audio Extraction). During the audio reading process, CDRoller can use jitter correction and also use sector re-reading to detect errors or loss of synchronization. The read tracks can be immediately converted into various digital audio formats - WAV, MP3, MP2, OGG, etc. The program can encode audio CDs on the fly, without creating an intermediate WAV file. To evaluate the quality of optical media, CDRoller runs a series of tests (the test can be started by selecting the drive from the list of available devices and using a keyboard shortcut), selecting a test method depending on the type of data recorded. The program checks file system ISO 9660, and also performs a disk surface check, after which it displays a detailed generated report on various media properties - the number of detected sessions, the program in which the recording was made, the size of the file allocation table, the list of unreadable folders, etc. d.

Please note that this check cannot be applied to disks with the UDF file system. Errors on optical media with such a file system are detected automatically. This data recording format is actively used various models camcorders with DVD recording, DVD recorders, and batch recording applications such as Roxio Drag-To-Disc and Nero InCD. Users who have to deal with such discs often encounter a situation where the captured and recorded video is not played back. Typically, data recording errors occur at the session closing stage. They can be found when working with devices from a variety of manufacturers - Lite-On, Thomson RCA, Philips, Panasonic, etc. In most cases, CDRoller allows you to partially or even completely recover this data.

IsoBuster 2.5

Developer: Smart Projects
Distribution size: 4.8 MB
Spreading: shareware
Interface: Russian This program is a universal data recovery tool. Many users consider this utility the best remedy to “repair” unreadable data from optical disks and, it must be said, for good reason. The program is updated regularly, and the long list of its features grows from version to version. On this moment IsoBuster can recover data from almost any media, including BD and HD DVDs.

The secret of IsoBuster's popularity is, first of all, that this program understands all existing file systems that are used today to record data. The utility works with the contents of images; it can be used to mount images and extract data from them, as well as directly run files. The program supports the formats of all popular disc burning programs, such as CDRWin, CloneCD, DiscJuggler, BlindWrite, WinOnCD, NTI, Plextools and many others. IsoBuster can also be used to create an exact image of the source disk, and the image can be written in .iso, .bin, .tao formats, created with cue markings and a .md5 checksum to determine data integrity.

The program makes it possible to check the status of the media (you don’t even have to extract data to the hard drive) and can create a list of files containing read errors. If, when reading a disk image, the program detects bad sectors, IsoBuster can collect statistics on bad disk areas and save it to a separate file. In the event that restrictions are imposed on the file system (for example, FAT), created files images can be split into parts, the size of which is specified in the IsoBuster settings.

Conclusion

Unfortunately, there is no such method that would guarantee 100% protection of data on optical media. Therefore, there is nothing left to do but handle the disk more carefully and always keep a backup copy of it “in reserve.” Well, if, despite the precautions taken, trouble still occurs, files from the disk are not copied or are not visible at all - it’s time to try one of the described utilities for recovering information from the media. We wish you to use these programs only out of curiosity, and not out of necessity.

Hello.

I think many experienced users have quite a few CD/DVD discs in their collection: with programs, music, films, etc. But CD discs have one drawback - they are easily scratched, sometimes even from careless loading into the drive tray ( I’ll keep silent about their small capacity for today :)).

If we also take into account the fact that disks quite often (whoever works with them) have to be inserted and removed from the tray, then many of them quickly become covered with small scratches. And then the moment comes - when such a disk is not readable... It’s good if the information on the disk is distributed on the Internet and can be downloaded, but what if not? This is where the programs that I want to present in this article will be useful. So, let's get started...

What to do if a CD/DVD disc is unreadable - recommendations and tips

First, I want to make a small digression and give some advice. Below in the article are the programs that I recommend using for reading “bad” CDs.

If your disc is not readable in your drive, try inserting it into another (preferably one that can write DVD-R discs, DVD-RW ( Previously, there were drives that could only read CDs, for example. More details about this here: https://ru.wikipedia.org/)). I myself have one disc that completely refused to play in an old PC with a regular CD-Rom, but easily opened on another computer with a DVD-RW DL drive ( By the way, in this case I recommend making a copy from such a disk).
It is possible that your information on the disk is of no value - for example, it could have been posted on a torrent tracker a long time ago. In this case, it will be much easier to find this information there and download it than to try to restore a CD/DVD disc.
If there is dust on the disc, carefully blow it off. Small particles of dust can be carefully wiped off with napkins ( Computer stores have special ones for this purpose.). After wiping, it is advisable to try reading the information from the disk again.
I should note one detail: it is much easier to recover a music file or movie from a CD than any archive or program. The fact is that in a music file, if it is restored, if some piece of information is not read, there will simply be silence at that moment. If a section of a program or archive cannot be read, then you will not be able to open or run such a file...
Some authors recommend freezing disks and then trying to read them (arguing this by the fact that during operation the disk heats up, but after cooling it, there is a chance that in a few minutes (until it heats up) the information can be pulled out). I don’t recommend doing this, at least until you’ve tried all other methods.
And lastly. If there was at least one case that the disk was inaccessible ( couldn't read, an error appeared) - I recommend copying it completely and rewriting it to another disk. The first bell is always the main one :)

Programs for copying files from damaged CD/DVD disks

1. BadCopy Pro

BadCopy Pro is one of the leading programs in its niche, which can be used to recover information from a variety of media: CD/DVD drives, flash cards, floppy drives (probably no one uses these anymore), USB drives and other devices.

The program is quite good at extracting data from damaged or formatted media. Works in all popular Windows versions: XP, 7, 8, 10.

Some features of the program:

the whole process takes place entirely in automatic mode(especially relevant for novice users);
support for a bunch of formats and files for recovery: documents, archives, pictures, videos, etc.;
the ability to restore damaged (scratched) CD/DVD discs;
support different types media: flash cards, CD/DVD, USB drives;
the ability to recover lost data after formatting and deletion, etc.

2. CDCheck

CDCheck- this utility is designed to prevent, detect and recover files from bad (scratched, damaged) CDs. Using this utility, you can scan and check your disks and determine which files on them have been corrupted.

At regular use utilities - you can rest assured about your disks; the program will promptly inform you that data from the disk needs to be transferred to another medium.

Despite its simple design (see Fig. 2), the utility does its job very well. I recommend it for use.

Rice. 2. Main window of the CDCheck v.3.1.5 program

3.DeadDiscDoctor

This program allows you to copy information from unreadable and damaged CD/DVD disks, floppy disks, hard drives and other media. Lost sections of data will be replaced with random data.

After starting the program, you are offered three options to choose from:

Copy files from damaged media;

Make a complete copy of the damaged CD or DVD;

Copy all files from the media, and then burn them to a CD or DVD.

Despite the fact that the program has not been updated for a long time, I still recommend trying it if you have problems with CD/DVD drives.

4. File Salvage

Website: https://www.softportal.com/software-5538-file-salvage.html

To give a short description: File Salvage is a program for copying broken and damaged disks. The program is very simple and not large in size (only about 200 KB). No installation required.

Officially works in Windows 98, ME, 2000, XP (I tested it unofficially on my PC - it worked in Windows 7, 8, 10). Regarding recovery - the results are very average, with “hopeless” disks - it is unlikely to help.

5.Non-Stop Copy

Despite his small size- the utility very effectively recovers files from damaged and hard-to-read CD/DVD discs. Some distinctive features programs:

can continue files not completely copied by other programs;
the copying process can be stopped and continued again after some time;
support large files(including more than 4 GB);
the ability to automatically exit the program and turn off the PC after the copying process is completed;
Russian language support.

6. Roadkil's Unstoppable Copier

In general, a very good utility for copying data from damaged and scratched disks, disks that refuse to be read by standard ones using Windows, and disks, when reading which errors appear.

Rice. 7. Super Copy 2.0 - the main window of the program.

Another small program for reading files from damaged disks. Those bytes that will not be read will be replaced (“filled”) with zeros. Useful when reading scratched CDs. If the disc is not badly damaged - then on a video file (for example) - after restoration there may be no flaws at all!

That's all for me. I hope that at least one program will be the one that will save your data from the CD...

Happy recovery :)

Details Created: 01/15/11

The author of the program is Andrey Vladimirovich Vereshchagin.
Type – program for reading damaged disks.

Super Copy 2.1 is a program for reading damaged disks and floppy disk-type magnetic media. I checked it on CD and DVD discs. Theoretically, copying from BD is also possible. The advantages of this program are that it is: free, works without installation, its size is 408 KB, has a simple and convenient intuitive interface (picture below), there is a help system (but you won’t need it).

Super Copy is a very easy to use program for reading damaged disks.

To run the program, you need a computer with a processor of at least P-166MMX, 32Mb random access memory and higher, 408 KB hard disk space, optical drive, floppy drive, OS Windows 98/NT/2000/XP/Vista/7. Work under Windows control I checked XP/Vista/7 myself. You may need Administrator level access rights to run. When copying large files (4.4 GB) in Windows 7, the program may crash. The developer declares compatibility with Windows 98/NT/2000 on its website. I think he can be trusted. However, it should be borne in mind that the better your hardware (processor, RAM, HDD (“hard drive”), optical drive, etc.), the faster the copying process will occur. The following factors also influence the copying process time: the size of the copied file, the degree of damage to the media, and the program copy settings.

I saw the “highlight” of this program when I tried to copy from a scratched CD-R disc movie. Before this, I tried to do the same thing using IsoBuster (a paid and disproportionately more functional program). IsoBuster never worked. The copying process is stuck at 30%. The CPU load was about 100%. As a result of fifty minutes of copying the thirtieth percent, I interrupted the task.

The Super Copy program (then still 2.0) coped with the task with a bang. At the same thirty percent, she “thought” a little, skipped it (replacing it with zeros) and continued copying further. After 20-25 minutes I received a copy of the film on my hard drive. While watching, at about the unfortunate thirty percent, the Windows Media Player flashed a black screen, the sound cut out for a couple of seconds and the film continued.

Super Copy 2.1 interface overview

Let's look at the main window of the program for reading damaged disks Super Copy 2.1 (picture below).

Button for selecting a file to copy (duplicated in the File menu).
Button for selecting a directory to save the copied file (duplicated in the File menu).
Button to start the copying process (duplicated in the Copy menu).
Button to open the settings window (duplicated in the Settings menu).
Button to open the program website in the browser. Internet connection required (duplicated in the Help menu).
Button to open the About window (duplicated in the Help menu).
Path string to the damaged file (can be edited manually).
Path string to the directory to save the copied file (can be edited manually).
Progress indicator.
"Legend" of the copying process. Visually displays which “file blocks” have been read/damaged.

Setting up Super Copy 2.1

To open the settings window, click the button Tune in the main program window. Or go to menu Tune and select Program parameters(picture below).

The super-copy-2.1 program can carry out the copying process using several methods. Which one to use depends on the specific situation. You can set the reading area (the entire file or up to the first error). You can also set the direction of reading the file. If you check the " Read from older addresses", reading the block will begin not from the beginning, but from the end, which will significantly slow down the process of reading files, but will reduce the number of errors. If you check the " Abort reading after... seconds.", the program will monitor the reading process from the outside and interrupt it after a specified amount of time. This is very useful feature, because Some device drivers take a very long time to process errors. Those. when a program tries unsuccessfully to read the same section for a long time, the reading process will be forcibly interrupted after the time you set. If this does not happen, without interrupting the copying process, you must remove the storage medium from the reader and, after the message appears, insert it back.

Copy methods

A method for reading an entire file forward. The file is conventionally divided into blocks. Blocks are read only sequentially in the forward direction and without exception. Reading in the block occurs before the first error occurs. For example, this method is suitable for reading small files or for detailed damage analysis.
A method of reading an entire file in reverse. The file is conventionally divided into blocks. Blocks are read only sequentially in the opposite direction and without exception. Reading in the block occurs before the first error occurs. For example, this method is suitable for reading small files or for detailed damage analysis. If the " ", the block is read backwards, i.e. from large addresses to smaller ones. This allows you to reduce the number of errors.
A method of reading an entire file first forward and then backward. The file is conventionally divided into blocks. Blocks are read only sequentially in the forward direction and all without exception, then the program will try to read those blocks that could not be read when reading forward. Checkbox " Read from older addresses" must be installed. This method is suitable for reading small files or when there is minor damage to the media.
A method of reading a file until the first error occurs in the forward direction. The file is conventionally divided into blocks. Blocks are read only sequentially in the forward direction until the first error occurs in the block. This method is suitable for reading heavily damaged media.
A method of reading a file backwards until the first error appears. The file is conventionally divided into blocks. Blocks are read only sequentially backwards until the first error occurs in the block. If the " Read from older addresses", the block is read backwards, i.e. from large addresses to smaller ones. This reduces the number of errors. This method is suitable for reading heavily damaged media.
A method of reading a file forward, then backward until the first error occurs. The file is conventionally divided into blocks. Blocks are read sequentially, until the first error appears in the forward direction, then until the first error appears in the reverse direction. Checkbox " Reverse reading when reading backwards" must be installed. This method is suitable for reading heavily damaged media. (The items “Setting up Super Copy 2.1” and “Copy methods” are taken from the program help).

During the copying process (picture below), the copying progress indicator begins to change and the “legend” is filled in

I give you screenshots of the task manager and system utility Resource Monitor in Windows 7.

Hardware and software PC:

Processor – Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz.
RAM – DDR2 4 GB (800 MHz).
Motherboard – Asus P5Q SE2.
HDD – Western Digital Caviar Black (WD5001AALS-00L3B2).
Optical drive – ASUS DRW-20B1LT ATA Device.
OS version – 6.1.7600 (Win7 RTM).

To my great regret, the program has not been updated for a long time. Version Super Copy 2.1 is the latest on the developer's website. But so far Super Copy 2.1 is one of the best free program for reading damaged disks that I have come across.

Please check the size of the downloaded file with the data indicated on the site. The download link is at the end of the article above the comments.

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