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"Unrecovered Read" or "Cyclic Redundancy" Error

Discussion in 'DVD±R for advanced users' started by robtwilk, Feb 24, 2005.

  1. robtwilk

    robtwilk Regular member

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    I have a problem with a two year old movie - Fem Bella. I'm getting an "Unrecovered Read Error" with Decrypter, I get a "Cyclic Redundancy Check" with Shrink, and I get a Read error with Xcopy Platinum. I have even used AnyDVD to break the encryption, but still no luck. This is the first time every program has failed (except the recent problems with Little Black Book, Res Evil 2, etc. that were fixed).

    I tried this on both of my Sony Vaio PCs and get the same results. They both have Sony DRU-700A burners installed and the firmware is the latest revision.

    I also have a Dell PC with it's generic burner. This PC had no problems making a backup of this movie, so I have to guess it's not a bad disc.

    Anyone have some good advice or thoughts?
     
  2. Nephilim

    Nephilim Moderator Staff Member

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    If I was to be guessing I'd say that the disc definitely has an "iffy" spot on it that only the drive in your Dell was able to read. All those read errors you got point to that.
     
  3. squizzle

    squizzle Active member

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    I have had discs that were manufactured poorly and you could see a discolored smear on them, usually in the center going through about half the disc, and I have gotten the same errors and cannot rip these. If this is the case, get a better copy of the original.
     
  4. robtwilk

    robtwilk Regular member

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    The disc is not in great health, which is one reason I wanted to back it up. I just thought that since the Dell could read it, one of my two Sony's could.

    I'll have to see if this continues to happen with other DVDs. Thanks!!

    Can anyone point me to a spot that explains how to get a UDF file to play in a DVD player? I have a 4.5GB TV show that I burned with Nero to a +RW disc. But I guess that's not a file type recognized by players - so I must convert the file to the correct format.
     
  5. squizzle

    squizzle Active member

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    DVD movies are UDF format. Are you sure your player will support +RW playback? How did you create the UDF file.
     
  6. robtwilk

    robtwilk Regular member

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    Yes, all five of my Sony players play +RW. I have watched many shows recorded on +RW.

    I have a DVR on my PC. It records TV programs with a .DVR-MS extension (Microsoft Recorded TV Show). I tried to burn it with Nero, which would only let me create a UDF file - since it was too large to fit on one disc. I tried to play this disc in my best player and it cannot read the DVD.

    Then I then used Decrypter to burn an ISO image of the UDF file.

    I tried to use Shrink to open the ISO image, but Shrink gives me an error when using Open Disc - "failed to find Video_TS.IFO".

    Any ideas?

     
  7. jslanders

    jslanders Member

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    I am also receiving the cyclic redundancy error on The Forgotten its a brand new disc as far as I can tell there is nothing wrong with it.
     
  8. andmerr

    andmerr Guest

    download isobuster, run your disc throught it and see if the program can pick the location of the problem file and then see if you can recover it.

    http://www.smart-projects.net/isobuster/

    software description:

    The Ultimate CD and DVD data recovery tool !

    Rescue lost files from a bad or trashed CD or DVD !
    Save important documents, precious pictures or video from the family, your only system backup, ...
    IsoBuster can do it all ! All common CD and DVD formats and file-systems are supported.

    IsoBuster features:

    - Data recovery from CD and DVD.
    - Better Error handling and several retry-mechanisms to aid you in getting the data anyway.
    - The use of both generic and alternative ways to get to the data, get the best out of your CD/DVD-ROM drive.
    - The use of secondary file-systems to get to the data and/or make use of file system data that might be ignored or ‘forgotten’ by popular OS.
    - CDs stay 'readable' after problems (such as Buffer Under-run). Read from open sessions, ... .
    - Read and Extraction of files, CD/DVD images, tracks and sessions from all optical media.
    - Supports : CD-i, VCD, SVCD, SACD, CD-ROM, CD-ROM XA, CD-R, CD-RW, ...
    - Supports : DVD-ROM, DVCD, DVD-RAM, DVD-R, DVD-RW, DVD+R, DVD+RW, DVD+R DL, DVD-R DL, ...
    - Scanning for lost UDF files and folders.
    - Find lost data on CD or DVD created with drag and drop applications (e.g. Direct CD, InCD, DLA, Instant-Write, Packet CD, Drag to Disc, FileCD, abCD, ...).
    - Find lost pictures created and saved to CD with Sony Mavica, other digital cameras or other devices with embedded UDF write functionality.
    - Auto find extensions based on file content to try and give an appropriate name to an orphaned file. This built in file identifier assigns the proper extension to the file so that Windows applications can open the file. Only needed for orphaned files without a name.
    - Support for Direct CD compressed files. Decompression on the fly.
    - Support for Mount Rainier CD-RW and DVD+RW discs in MRW compatible and non-MRW compatible drives.
    Auto detection and automatic remapping which can be switched of or forced at all times.
    - Support for formatted CD-RW discs mounted in very old drives that do not know the CD-RW fixed packet format yet.
    Auto detection and automatic remapping which can be switched of or forced at all times
    - Recover data from blanked or quick formatted DVD+RW media.
    - Mpg (*.dat) Extraction and dat2mpg 'in one'.
    - Enormous file system coverage and different ways to use them all (find the one suited best for your needs).
    - ISO9660, Joliet, Romeo (Short File-names vs. Long File-names on mastered CDs)
    - Big Endian (Motorola), Little Endian (Intel) (Windows vs. Unix, Mac and other systems' defaults)
    - Built in UDF Reader, UDF 1.02 (e.g DVDs), UDF 1.5 (e.g. Packet writing on CD-R, DVDR, CD-RW and DVDRW), UDF 2.01, 2.50, ...
    - Built in HFS Reader supporting HFS and HFS+, the Apple Mac file systems.
    - Rock Ridge (e.g. for Commodore users)
    - Information and file system properties (must for FS developers)
    - CD/DVD Surface scan to see if there are physical read errors.
    - Opens checksum files (*.md5) and automatically verifies the image with the checksum file.
    - Check if all files and folders are readable without having to extract all data to HD.
    - Single sector extraction. Extraction of CD/DVD parts, fit to your needs (Engineering purposes)
    - Sector Viewer. Check a sector's content in IsoBuster's editor and print or save to HD.
    - Compile (and edit, save, print) lists of all files that contain physical read errors.
    - Compile lists of all files, including their Logical block address (ideal to find the logical play order for mp3 CDs)
    - CD-Text support from CD, *.PXI, *.CCD, *.B5T and *.CUE image files.
    - Creation of image files (*.iso, *.bin, *.tao)
    - Creation of checksum files (*.md5)
    - Creation of cuesheet files (*.cue)
    - Conversion of image files
    - Handles opening of multi-file image files.
    - Creation of multi-file image files or disc spanning to specified size
    - Many other neat features the OS doesn't offer.
    - Comprehensive help file
    - Supports an enormous range of image files (see further)
    - ...

    On top of this, Isobuster interprets CD image files, such as:

    - *.DAO (Duplicator), *.TAO (Duplicator), *.ISO (Nero, BlindRead, Creator), *.BIN (CDRWin), *.IMG (CloneCD), *.CCD (CloneCD) , *.CIF (Creator), *.FCD (Uncompressed), *.NRG (Nero), *.GCD (Prassi), *.P01 (Toast), *.C2D (WinOnCD), *.CUE (CDRWin), *.CDI (DiscJuggler), *.CD (CD-i OptImage), *.GI (Prassi PrimoDVD), *.PXI (PlexTools), *.MDS (Alcohol), *.MDF (Alcohol), *.VC4 (Virtual CD), *.000 (Virtual CD), *.B5T (BlindWrite), *.B5I (BlindWrite), *.DMG (Apple Macintosh).
     
  9. beverigt

    beverigt Member

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    Dear Andmerr:

    Thanks for the advice. I have a Hitachi camcorder, DZ-MV350A, that burns movie directly to mini discs (RAM & -R). On half of the "-R" discs I attempt to burn (using nero or Sonic MyDVD)I get the CRC error. Hitachi tech help is no help, saying I SHOULD NOT be able to copy "-R" discs by design, only RAM discs. I refuse to accept this since I can burn at least half the "-R" discs created, from one drive to another using Nero. On this particular disc, I attempted to circumvent the burn program and burn in "data" format, not movie. When attempting to copy in movie format, VTS_01_2 (.VOB)cannot be read. Without this file, even in data format, the disc can only be viewed on PC, not DVD player connected to TV? I know I've been rambling, but my real question is "Does Isobuster work?". I downloaded (after I tried cleaning disc), and when I attempt to "run & extract", they want their $29.95 for that version. The $29.95 would be worth a lot more than that, but I don't want to keep trying these things unneccessarily...

    Please advise....beverigt....I AM A NEWBIE..thanks
     
  10. andmerr

    andmerr Guest

    these programs for me have worked on about 50% of the time but have also stumbled about 50% as well.yes they do work,this one is very similar to what dvd x rescue by 321 studios released but ,You have at least got a starting point to continue .

    As you already no what the damaged section is if isobuster can't recover the file your next step is to look for info on how to demux and remux (create a new vob)this is out of my area but some one on this site will know how to do it.
     
  11. robtwilk

    robtwilk Regular member

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    I have the same mixed results with Xcopy's DVD X Rescue. Sometimes it works, some times it doesn't.
     

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