On Fri, Dec 16, 2011 at 11:03 AM, Grant Edwards <[email protected]> wrote: > On 2011-12-16, Mark Knecht <[email protected]> wrote: >> On Fri, Dec 16, 2011 at 9:06 AM, Michael Mol <[email protected]> wrote: > >>> No; you'll have to decrypt, or do without the encrypted bits. >>> >>> dvdbackup is probably the closest to what you want. >> >> Interesting. So even something that just copies blocks of data, like >> dd, can't be used for that purpose? > > Correct. If you use dd to copy an encrypted disk, the result will be > missing something like 90% of the data. > >> I have no interest in tearing apart the DVD in any way. It was more >> about the idea of a fire causing the loss of maybe $15K-$20K >> investment over the years. I can rip all the CDs, keep the ripped >> version here to watch on the computer, and store the DVDs elsewhere, >> but that elimiates (generally) being able to watch special features >> which my wife and kid enjoy. > > No it doesn't. You can use dvdbackup (or k9copy or ...) to copy the > DVDs to the computer and when you play them back you get all the menus > and special features and whatnot. If you want you can create ISO > images and burn them to dual-layer-DVDs, but you don't need to do that > to play them with all the features. > > -- > Grant Edwards grant.b.edwards Yow! Now we can become
Hi Grant, I should have guessed you'd be on top of this subject given your pointer a month ago about Handbrake. (Which has been a really great program.) Thanks for that and thanks for the additional info. So for my continued education, if I take an encrypted movie I can use program XYZ (Linux or Windows-based...) to create an iso image, but that iso image won't, even if it does include all the special features, ever be a bit-for-bit copy of the original. It's now unencrypted and created anew. It's a completely different way to represent the original data. That said, if it's a _complete_ representation of the original then the special features are there, and if written to a DVD _might_ work in my DVD player, assuming the DVD player isn't specifically looking for something that was on the original disc such as specifically encrypted blocks of data, etc. Am I getting closer? Thanks, Mark
