So, this isn't such a practical issue for me these days, but figure I'd throw out a feature idea that might improve anydvd a bit for DVDs.
It's well known that DVDs and BluRays get scratched. this sucks, and can make ripping difficult. My workflow for these discs was to just contentiously run ddrescue over them (in the past had shared some of my logs with you for MoD bluray discs with bad blocks), until I got a complete image. The image is encrypted, so can't be used as is.
for BluRays, this wasn't a problem, either AnyDVD already knew the VUK or I could stick the physical (difficult to read disc) into the drive and AnyDVD would calculate the VUK. It could then use any mounting program to mount my fully read encrypted image and decrypt it.
I don't believe a similar thing can be done for DVDs (i.e. cache the calculated key and use it later). In fact, if memory serves me (and I think I might have talked about this small point before), AnyDVD wont even try to brute force the keys off a mounted encrypted image, the mounting program says its not encrypted, so it just assumes its not (as opposed to BluRays where the AACS directory shows that its encrypted).
what I used for my workflow was old school dvd decrypter which can brute force (generally, not always) the keys off a mounted encrypted dvd iso (do iso to iso to avoid other protection schemes).
However, as I said "generally", as small VOBs (I believe) can't be brute forced, need a certain amount of data. Now, generally, those small VOBs dont matter that much, but it still be better to be perfect, hence the idea that it be nice if AnyDVD could calculate and cache the keys from a physical disc (like it does for BluRays) and use them to fully decrypt the disc.
just a thought.
It's well known that DVDs and BluRays get scratched. this sucks, and can make ripping difficult. My workflow for these discs was to just contentiously run ddrescue over them (in the past had shared some of my logs with you for MoD bluray discs with bad blocks), until I got a complete image. The image is encrypted, so can't be used as is.
for BluRays, this wasn't a problem, either AnyDVD already knew the VUK or I could stick the physical (difficult to read disc) into the drive and AnyDVD would calculate the VUK. It could then use any mounting program to mount my fully read encrypted image and decrypt it.
I don't believe a similar thing can be done for DVDs (i.e. cache the calculated key and use it later). In fact, if memory serves me (and I think I might have talked about this small point before), AnyDVD wont even try to brute force the keys off a mounted encrypted image, the mounting program says its not encrypted, so it just assumes its not (as opposed to BluRays where the AACS directory shows that its encrypted).
what I used for my workflow was old school dvd decrypter which can brute force (generally, not always) the keys off a mounted encrypted dvd iso (do iso to iso to avoid other protection schemes).
However, as I said "generally", as small VOBs (I believe) can't be brute forced, need a certain amount of data. Now, generally, those small VOBs dont matter that much, but it still be better to be perfect, hence the idea that it be nice if AnyDVD could calculate and cache the keys from a physical disc (like it does for BluRays) and use them to fully decrypt the disc.
just a thought.