Have found workaround for "CRC" errors

Discussion in 'Video to DVD' started by rp_024, Jan 1, 2006.

  1. rp_024

    rp_024 Guest

    Farting around with some of my discs which I know have been problems, I decided to try something different rather than download every dvd backup software and ripper available.

    Getting frustrated with the fact some of my movies have suddenly developed CRC (Cyclic Redundancy Check) errors, I decided to try re-encoding. I was able to mount the bad disc (Shrek)and import the VOB's into "Super Video Converter". Once in SVC, I arranged so that all VOB's were in order. I then selected all, and chose convert to MPEG II. After the files were encoded to MPEG II, I opened DVD Santa and imported all of the Newly created MPEG II files. I put them in order according to creation and selected Create DVD. Guess what? The movie was recreated perfectly with no CRC and is viewable in the same high quality DVD format as was at initial backup. I can even copy the DVD again with no problems. It took a while to do everything (about 2 1/2 hours) but hell, if this is a way to save problem discs. I'd much rather do this than go through trying clean them over and over and again and run them through every single software available with no success.
     
  2. andmerr

    andmerr Guest

    need to see more actaul proof(recovery) before i believe that this is the best solution..............
     
  3. rp_024

    rp_024 Guest

    Try with your favorite software. All I did was convert the VOB files to MPEG II, then joined them to one MPEG II file, then converted back to VOB and made the DVD. Same res, and picture quality. If I had any other way to show you the bad disc I would. Anyhow, works for me. Thats really all that matters.
     
  4. rp_024

    rp_024 Guest

    Just finished up an A&E Documentary on WWI, "The Lost Battalion" with all kinds of issues, skipping, checkerboarding etc. Yet another fine re-encode and DVD Creation. No probs on the newly created disc.
     
  5. moonrocks

    moonrocks Regular member

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    If you've got CRC errors when ripping but you can get the .VOB files off your disc and to your hard drive that's a plus. Going from .VOB to .mpeg2 to authored DVD is a good strategy but the only thing I'd be concerned about is your reference to "re-encoding" to mpeg2.

    Converting a .VOB file to .mpeg2 should be a lossless process, no re-encoding. If SVC (not familiar with it) is in fact re-encoding the .VOB, which your 2 1/2 hour process time suggests, you'd want to look at other ways of getting there.

    A good mpeg2 editor should demux a 1 GB .VOB file in 1 or 2 minutes. So figure 6-7 minutes to convert 4 .VOB's to mpeg2 then another 20-25 minutes to author with TMPGEnc DVD Author, or whatever you like to use, and your done. Don't re-encode unless you have to.
     
    Last edited: Jan 2, 2006
  6. rp_024

    rp_024 Guest

    You know, I hear a ton about TMPGEnc but have never used it myself. Yes, I've taken a gander but it seems it is way too involved for my little brain. I like to point and click rather than tinker with fine tuning the utility. Have you any good graphical instr. for the use of this program? I'm thinking I'd like to give it a shot. Unfortunately I'm not actually able to get the VOB's from the disc to the Harddrive first. I'm actually re-encoding back to MPEG II from the disc to Harddrive, therefore the longer process time. Any disc which has CRC errors won't be able to be copied back to the Harddrive without somehow or another reencoding the files from the physical disc first. I only wish it were that easy. I'd really like to meet someone who is able to create a program which actually fixes the bad sectors on the disc to make a perfect re-copy without having to do all of these steps. I've tried DVD re-builder and Bad Copy Plus with no success, thinking of course there was really something out there already which could fix this issue in one step. Not yet though.
     
  7. moonrocks

    moonrocks Regular member

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    TMPGEnc DVD Author isn't hard to use, you wouldn't have a problem with it. It's very point and click oriented, add your .mpeg files one at a time, output, and that's it.

    "Any disc which has CRC errors won't be able to be copied back to the Harddrive without somehow or another reencoding the files from the physical disc first."

    I'm not sure how you're using the word "reencoding" here. Getting files off of a DVD, whether it's copy protected or physically damaged, wouldn't involve re-encoding. It would only be a matter of reading and writing. Reading all the readable sectors and writing them to your harddrive.

    Some rippers, like DVD Decrypter, can be configured to ignore read errors and keep going through the disc. You'll then have all the readable sectors copied over to your hard drive, but nothing gets re-encoded.

    Also, if your ripper is reporting CRC errors from an undamaged DVD but the DVD just has some new protection on it, like ARcoSS, then it's just a matter of the right software to get past the protection. It's still a read-write operation after that. Getting files off of your DVD to your harddrive should never require re-encoding the video.
     
  8. rp_024

    rp_024 Guest

    Is exactly what I thought. Maybe it's just the software's default message during read? Dunno, but it does work for me. Yeh, I tried changing all of my settings in DVD Decrypter as per "Old Man Pete's" instructions. Couldn't even get the bad sectors to be bypassed. Just hung and retried about 320 times. Yes, I let it go that long. Actually went to lunch and came back and thats where we were. How bout this arcoss protection. You know of any utilities? I know with the latest version of ANYDVD, It's been removing everything. No probs with any new releases.
     
  9. moonrocks

    moonrocks Regular member

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    I'm lucky so far, I haven't come across any ARcoSS disks yet so I don't have a clue as to the best techniques for dealing with them. Cross that bridge when I get to it I guess.

    With Decrypter set to ignore read errors and retries to 0 it can still take a long time to get through a disk, depending how many sectors Decrypter has to struggle with. A long time. If a disk actually has damaged sectors due to a scratch or something (not errors due to protection) DVD Fab Decrypter is pretty good at getting through those.

    Cheers.

     
  10. rp_024

    rp_024 Guest

    Cool thought, I'll give it a shot. Thanks mate!
     

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