Good old cyclic redundancy check error... any advice?

[TheRybot]

I have been reading these boards for a while looking for answers on stuff, and I am completely puzzled at this one... so here's my story let's see if anyone can help me out

I have a Panasonic standalone DVD-Recorder. I use this to back up VHS and tape stuff from TV and stuff like that. I have quite a few DVD-Rs from this. I also have a a NEC 1300A DVD-RW drive in my PC. I use this for straight copies of DVDs. Lately, I have been trying to back up some DVD-Rs I have recorded using my Standalone drive for a friend of mine. On the majority of them I get a CRC error right near the end of the disk. I have tried DVD Shrink, and DVD Decryptor, and I still get it. These disks are FujiFilm disks. The strange thing is these disks are pretty much MINT condition. NO scratches, NO smudges, I NEVER used Labels on them, and still i get this error at the end of the process with both these programs. I have even tried copying the files to the hard drive manually through explorer. I thought maybe it was the FujiFilm media, but I don't think it is, because many of the disks I have copied with FujiFilm disks copy without any problems at all in the PC, and they're fujifilm as well. Basically, I just want to know if it's possible that i have a bad drive? For most people I know this would be a negative thing, but I have litterally over 500 disks that I would like to be able to easily duplicate using my PC rather than having to run them through the standalone EVERY time because of video quality loss and time consumption. So a bum drive would actually be the best possible problem here for me. Please let me know what you think.

Thanks in advance,

Rybot

[ricky1756]

cyclic redudancy means your dvd recorder can't read the sectors on the disc. the problem usually shows up at the end of discs. the problem is with your media, if there are no scratches or fingerprints on the disc. loook closely at the disc, when i have that problem i can usually see uneveness in the dye.

[TheRybot]

So it's not at all possible that the Drive is bad? I mean the disks play perfectly in ALL other players.

[Shocker Milwaukee]

Is the NEC drive the only one in your computer?
Maybe it's a poor reader (not sure what the consensus is on that model). Perhaps a cheap DVD-ROM could be your solution.
I got a CRC error on a brand new pressed DVD I was backing up. At the time, I was ripping with my burner, so I tried it in my brother's machine. VOILA! No problem.

[handyguy]

Why don't you try some other media? Easy to do & a cheap solution.

[bobmc40]

To prevent cyclic redundancy, I burn a second copy of the files in "data"
(ISO) mode, after burning my DVDShrink disk.
This copy can be copied back to desktop with no problem.
bobmc40

[redwudz]

CRC errors are usually the media. But they can also be caused by the burner when writing or a DVD-ROM when reading. I've had that when the laser lens was dirty.

The easiest thing to do is to shorten the length of your video by a couple of hundred megabytes if the outer edge of the disc is where your problem is. I've had Shrink videos break up during the credits and shortening the video fixed them.

Good media shouldn't have that problem, though. You could do a scan of the discs and see if just the disc is showing the errors.

[mats.hogberg]

I get a CRC error right near the end of the disk.

Bad/incompatible media for sure. Use better/other media, or don't fill your DVDs to the brim. Leave 200 MB safety margin, and you should be fine.

/Mats