Cyclic Redundancy error

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  • Movie_viewer1
    Junior Member
    Junior Member
    • May 2005
    • 23

    Cyclic Redundancy error

    Hi, im trying to back up my copy of the Gandhi movie, but i get a cyclic redundancy error on shrink and decryptor.
    Any ideas???
  • anonymez
    Super Moderator
    • Mar 2004
    • 5525

    #2
    it is quite likely that your dvd is damaged/scratched/dirty. try cleaning it.
    "What were the things in Gremlins called?" - Karl Pilkington

    Comment

    • jmet
      Super Moderator
      • Nov 2002
      • 8697

      #3
      A CRC (Cyclic Redundancy Check) error is DVD Shrink's and/or DVD Decrypter's way of telling you that it cannot read the disc (DVD). It is caused from the disc being to dirty (fingerprints, smudges, etc.) or being to scratched. First, try cleaning the DVD. You can try toothpaste to lessen the severity of the scratches. (By no means am I saying that you will totally restore the DVD back to original condition, all your doing is just trying to get DVD Shrink to successfully read it.) If DVD Shrink or DVD Decrypter still generates this error message, I suggest returning the original for a different copy.

      Comment

      • Movie_viewer1
        Junior Member
        Junior Member
        • May 2005
        • 23

        #4
        I used a game doctor to try cleaning the DVD, but it didnt work. However, i am intrigued by the toothpaste technique, could you elaborate on it?

        Also, here is my DVD Decryptor Log:

        I 20:05:05 DVD Decrypter Version 3.5.4.0 started!
        I 20:05:05 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 2)
        I 20:05:05 Initialising SPTI...
        I 20:05:05 Searching for SCSI / ATAPI devices...
        I 20:05:05 Found 1 CD-ROM and 1 DVD±RW!
        W 20:05:07 Possible RCE Protection Found!
        W 20:05:07 Media region code: 1, 3, 4
        W 20:05:08 User selected Region 1 for the disc's region code.
        I 20:05:11 Operation Started!
        I 20:05:11 Source Device: [1:0:0] HL-DT-ST DVD-RW GWA-4082B A203 (D (ATA)
        I 20:05:11 Source Media Type: DVD-ROM
        I 20:05:11 Source Media Region Code: 1, 3, 4
        I 20:05:11 Source Media Copyright Protection System Type: CSS/CPPM
        I 20:05:11 Source Media Implementation Identifier: SONY DVD Video
        I 20:05:11 Destination Folder: C:\DVD_VIDEO\VIDEO_TS\
        I 20:05:11 File Splitting: By File
        I 20:05:11 Detect Mastering Errors: No
        I 20:05:11 Multi Angle Processing: No
        I 20:05:11 Remove Macrovision Protection: Yes
        I 20:05:11 Stream Processing: No
        I 20:05:11 Copying VTS_01_0.IFO... (LBA: 30272 - 30334) - KEY: N/A
        I 20:05:11 Decrypting VTS_01_1.VOB... (LBA: 70003 - 594289) - KEY: CE D2 48 C3 FD
        I 20:10:02 Decrypting VTS_01_2.VOB... (LBA: 594290 - 1118576) - KEY: CE D2 48 C3 FD
        I 20:13:44 Decrypting VTS_01_3.VOB... (LBA: 1118577 - 1642863) - KEY: CE D2 48 C3 FD
        I 20:16:50 Decrypting VTS_01_4.VOB... (LBA: 1642864 - 2167150) - KEY: CE D2 48 C3 FD
        Last edited by Movie_viewer1; 1 Jun 2005, 11:06 AM.

        Comment

        • jmet
          Super Moderator
          • Nov 2002
          • 8697

          #5
          You can try toothpaste to lessen the severity of scratches.

          Yep, just put a small dab directly onto the scratch, use the traditional white variety not the clear gel type. I then use a soft tissue wipe gently in only a radial direction (a straight line between the hub and the rim). Since the data is arranged circularly on the disc, the micro scratches you create when cleaning the disc (or the nasty gouge you make with the dirt you didn't see on your cleaning cloth) will cross more error correction blocks and be less likely to cause unrecoverable errors.

          If you continue to have problems after cleaning the disc, you may need to attempt to repair one or more scratches. Sometimes even hairline scratches can cause errors if they just happen to cover an entire error correction (ECC) block. Examine the disc to find scratches, keeping in mind that the laser reads from the bottom.

          There are essentially two methods of repairing scratches:


          Fill or coat the scratch with an optical material.

          Polish down the scratch.
          There are many commercial products that do one or both of these, or you may wish to do it yourself with polishing compounds or toothpaste. The trick is to polish out the scratch without causing new ones. A mess of small polishing scratches may cause more damage than a big scratch. As with cleaning, polish only in the radial direction.

          Comment

          • anonymez
            Super Moderator
            • Mar 2004
            • 5525

            #6
            also, there is an option "ignore read errors" in dvd decrypter options (its in there somewhere, look for it) enable it, then try decrypting again.

            i once had a very damaged dvd. it would not go past 42%. i enabled 'ignore read errors' , and eventually got it up to 43%, 44%, etc. (transfer takes much longer in damaged parts) once it got past the damaged part, it sped up and worked perfectly
            "What were the things in Gremlins called?" - Karl Pilkington

            Comment

            • jmet
              Super Moderator
              • Nov 2002
              • 8697

              #7
              Sometimes ignoring read errors can cause problems in DVD Shrink down the road.

              Comment

              • anonymez
                Super Moderator
                • Mar 2004
                • 5525

                #8
                what sort of problems exactly?

                i encoded to xvid instead of shrinking, and i guess i didn't notice anything wrong...
                "What were the things in Gremlins called?" - Karl Pilkington

                Comment

                • jmet
                  Super Moderator
                  • Nov 2002
                  • 8697

                  #9
                  They can cause various error messages in DVD Shrink. Usually "Programming Errors" I think. Sometimes "Invalid data in VOB file" error message.

                  Comment

                  • setarip
                    Retired
                    • Dec 2001
                    • 24955

                    #10
                    To Movie_viewer1

                    Would you please be good enough to post the ENTIRE DVD Decrypter log?

                    Comment

                    • anonymez
                      Super Moderator
                      • Mar 2004
                      • 5525

                      #11
                      LOL setarip = opposite blutach
                      "What were the things in Gremlins called?" - Karl Pilkington

                      Comment

                      • setarip
                        Retired
                        • Dec 2001
                        • 24955

                        #12
                        To anonymez

                        I had no idea ;>}

                        Comment

                        • Movie_viewer1
                          Junior Member
                          Junior Member
                          • May 2005
                          • 23

                          #13
                          Here is the log, or at least what was in it.

                          I 15:40:30 DVD Decrypter Version 3.5.4.0 started!
                          I 15:40:30 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 2)
                          I 15:40:30 Initialising SPTI...
                          I 15:40:30 Searching for SCSI / ATAPI devices...
                          I 15:40:30 Found 1 CD-ROM and 1 DVD±RW!
                          W 15:40:32 Possible RCE Protection Found!
                          W 15:40:32 Media region code: 1, 3, 4
                          W 15:40:36 User selected Region 1 for the disc's region code.
                          I 15:41:22 Operation Started!
                          I 15:41:22 Source Device: [1:0:0] HL-DT-ST DVD-RW GWA-4082B A203 (D (ATA)
                          I 15:41:22 Source Media Type: DVD-ROM
                          I 15:41:22 Source Media Region Code: 1, 3, 4
                          I 15:41:22 Source Media Copyright Protection System Type: CSS/CPPM
                          I 15:41:22 Source Media Implementation Identifier: SONY DVD Video
                          I 15:41:22 Destination Folder: C:\Documents and Settings\Sarang\Desktop\Gandhi\
                          I 15:41:22 File Splitting: By File
                          I 15:41:22 Detect Mastering Errors: No
                          I 15:41:22 Multi Angle Processing: No
                          I 15:41:22 Remove Macrovision Protection: Yes
                          I 15:41:22 Stream Processing: No
                          I 15:41:22 Copying VIDEO_TS.IFO... (LBA: 640 - 647) - KEY: N/A
                          I 15:41:22 Decrypting VIDEO_TS.VOB... (LBA: 672 - 30222) - KEY: CE D2 48 C3 FD
                          I 15:41:44 Copying VIDEO_TS.BUP... (LBA: 30240 - 30247) - KEY: N/A
                          I 15:41:44 Copying VTS_01_0.IFO... (LBA: 30272 - 30334) - KEY: N/A
                          I 15:41:44 Decrypting VTS_01_0.VOB... (LBA: 30336 - 69979) - KEY: CE D2 48 C3 FD
                          I 15:42:11 Decrypting VTS_01_1.VOB... (LBA: 70003 - 594289) - KEY: CE D2 48 C3 FD
                          I 15:47:02 Decrypting VTS_01_2.VOB... (LBA: 594290 - 1118576) - KEY: CE D2 48 C3 FD
                          I 15:50:44 Decrypting VTS_01_3.VOB... (LBA: 1118577 - 1642863) - KEY: CE D2 48 C3 FD
                          I 15:53:50 Decrypting VTS_01_4.VOB... (LBA: 1642864 - 2167150) - KEY: CE D2 48 C3 FD
                          W 15:56:24 Failed to read Sector 1771744 - Unrecovered Read Error
                          E 15:57:42 Failed to read Sector 1771808 - Unrecovered Read Error
                          E 15:57:43 Failed to decrypt VTS_01_4.VOB!
                          I 15:57:45 Decrypting VTS_01_5.VOB... (LBA: 2167151 - 2691437) - KEY: CE D2 48 C3 FD
                          I 15:57:50 Abort Request Acknowledged
                          E 15:57:51 Failed to read Sector 2167152 - Unrecovered Read Error
                          E 15:57:51 Failed to decrypt VTS_01_5.VOB!
                          E 15:57:53 Operation Aborted! - Duration: 00:16:30
                          E 15:57:53 Average Read Rate: 3,577 KB/s (2.6x) - Maximum Read Rate: 6,424 KB/s (4.6x)

                          Comment

                          • Movie_viewer1
                            Junior Member
                            Junior Member
                            • May 2005
                            • 23

                            #14
                            Would DVD43Free help me burn this movie?

                            Comment

                            • jmet
                              Super Moderator
                              • Nov 2002
                              • 8697

                              #15
                              "I 15:41:22 Source Device: [1:0:0] HL-DT-ST DVD-RW GWA-4082B A203 "
                              Update your firmware! Your 5 versions behind. You want to download "A209" - http://forum.rpc1.org/dl_firmware.php?download_id=1796

                              "W 15:56:24 Failed to read Sector 1771744 - Unrecovered Read Error
                              E 15:57:42 Failed to read Sector 1771808 - Unrecovered Read Error
                              E 15:57:43 Failed to decrypt VTS_01_4.VOB!
                              I 15:57:45 Decrypting VTS_01_5.VOB... (LBA: 2167151 - 2691437) - KEY: CE D2 48 C3 FD
                              I 15:57:50 Abort Request Acknowledged
                              E 15:57:51 Failed to read Sector 2167152 - Unrecovered Read Error
                              E 15:57:51 Failed to decrypt VTS_01_5.VOB!"
                              Your disc is either scratched or dirty. If dirty, clean first before trying to rip it. If scratched, you can try to lessen the severity of scratches by polishing them out with liquid car wax or toothpaste. If if it still fails, return it for a replacement.

                              "Would DVD43Free help me burn this movie?"
                              NO! I would stay away from DVD43. It can cause problems with DVD Decrypter!

                              Comment

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