www.makemkv.com

Yes, there is software out there like dd which replaces unreadable data with dummy data. Since dd is agnostic of the semantics of the data it reads, the best it can do is using zero bytes to fill the gap. And these then produce files which are corrupted and cannot (normally) be processed by video so...

When I have a scratchy BluRay and try to rip it, I start an encrypted disc backup with makemkv. As soon as the discatt.dat appears, I keep that and abort this backup. Then I create a complete (encrypted) image of the disc. The emerging .iso can be mounted under Linux and the files from there, combin...