how to read video off damaged cd's

[junglemike]

Hi.
I have many backups of cd's with video that i encoded long time ago. Most of them are in xvid+mp3+avi format.
I'm now trying to re-encode some of those episoded to lower resolution/size to see the video on palm device.
Many of those cd's have scratches.
For example there is a scratch at the end of the disc and there's notheing i can do (in a physical way) to help it.
I realize that small part with scratch may be lost, but i'm still willing to pull off what i can. And it doesn't seem to work
I've tried forcing "check video stream for errors" in virtual dubmod, and it says "cyclic smth... error". Simple direct stream copy gives same error.
I've tried making an nero image of the damaged cd to the hard disk (choosing ignore bad sectors) - It does make an nero image sucsessfully, than i map the image with deamon tools, and try to copy the video - I get same cyclic error as with source cd.
Don't know what to try more.
Any help would be great. Thanks.

[SallyDog]

Maybe try one of these ideas:

http://www.hydrogenaudio.org/forums/index.php?showtopic=2633&hl=

[Henrikx]

@junglemike
Try dvdisaster
dvdisaster provides a margin of safety against data loss on CD and DVD media caused by aging or scratches.

dvdisaster creates error correction data to compensate read errors which are not correctable in the CD/DVD drive.

dvdisaster tries to read as much data as possible from defective media. Afterwards unreadable sectors are recovered using the previously created error correction data. The maximum error correction capacity is user-selectable.

dvdisaster operates at the image level and does not depend on the file system.

If you create the error correction data in time and keep it at a safe place, you have a good chance of recovering the medium contents from typical read errors and to transfer your complete data onto a new medium.
http://www.dvdisaster.de/

[setarip_old]

See if this link is useful:

http://forum.doom9.org/showthread.php?t=114815&highlight=DVD+data