To cut to the chase, I hope to find the best drive possible to read DVDs I recorded that my current drives find unreadable or partially unreadable.
Here’s why. I archived videos on DVDs, both DVD-R’s and DVD+R’s from a variety of off-brand manufacturers (store brand, no brand, etc.) I burned them with Nero 6.6 on a Lite-On 411S firmware-altered to 811S.
Now I’ve realized my huge mistake. While the files on some discs are all accessible, most discs contain six or so files that refuse to copy (there are about 20 files per disc). The files that won’t copy are usually grouped next to each other on the disc.
For the most part, these discs have been untouched since I burned them, and there are no visible marks or scratches. So whatever the problem is, I don’t think it’s scratch-related. Also, the discs have been stored in DVD wallets and have not been exposed to any extreme conditions (heat, wet, etc.) What’s really odd is that some of these discs read perfectly a couple of weeks ago and now suddenly portions of the same discs are unreadable.
Over the past couple of weeks I’ve experimented with CDCheck, IsoBuster, CD/DVD Diagnostic, and BadCopy Pro, but those programs tell me the files, or sectors within the files, are unreadable, even when I’ve set the number of read attempts to the maximum.
Because some of my DVD drives read the discs more completely than others, I’m hoping someone who’s been through this before can recommend the best drive for reading unreadable discs. I’ve poured through the forums and see references to drives better able to read scratched discs, but my discs aren’t scratched. Speed doesn’t matter—just ability to read the unreadable.