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I'm trying to backup my DVD collection onto my Linux box. Usually dvdbackup or ddrescue work just fine. With some DVDs, however, dvdbackup and ddrescue fail, likely due to copy protections.

I tried ddrescue with "-b 2048 -n /dev/sr0 movie.iso rescue.log", with "-d" and with "-r3" instead of "-n" – they all fail with these DVDs.

Did I use ddrescue correctly? What other programs are there? How do you rip your DVDs when they are protected like this?

— Clarification —

The DVDs are commercial movies and I want to "rip" the DVDs to my hard disk. Tools like dvdbackup, dvd::rip or ddrescue don't seem to work. I have a whole bunch of failing DVDs (many of them new) so it's not just a bad disc.

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3 Answers 3

cdrecord has been a great tool (works with CDs and DVDs) Here's the home page.

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I'll try readcd. –  jk4736 Feb 13 '12 at 21:31
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No luck, I get read errors all over the place. –  jk4736 Feb 13 '12 at 22:31
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If you're trying to back up commercial DVD movies (not the same as a regular burnt DVD) and you're not looking to rip them (use dvdrip for that), then dd should work fine.

dd if=/dev/scd0 of=mydisc1.iso

If for some reason that's not working, you either have a bad disc or drive that won't let you read the disc raw for some reason. I would rip the disc with dvdrip in those situations.

See http://www.exit1.org/dvdrip

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They're commercial DVDs (that's why there's copy protections on them). dvd::rip does not work since it uses transcode which uses libdvdread, which I already tried via dvdbackup. –  jk4736 Feb 13 '12 at 21:19
    
dd doesn't work because of the copy protections. When ddrescue doesn't work, you may assume that dd doesn't work either. –  jk4736 Feb 13 '12 at 21:48
    
The reason I posted 'should work fine' was to imply that if it isn't, you have a disc or reader problem. There are Windows-based disc duplicators that understand the various Copyright tricks but those won't help you on Linux and are probably DMCA violations to post here. –  mikebabcock Feb 14 '12 at 17:53
    
It's a DMCA violation to watch a DVD in Linux? (Where I am, it's legal to circumvent copy protections if it interferes with otherwise legal use.) –  jk4736 Feb 14 '12 at 20:12
    
DMCA is an American-only law, and yes, technically its a DMCA violation to circumvent digital copy protection systems in the USA unless other laws supersede it in your state I presume. I'm Canadian so its not an issue personally. –  mikebabcock Mar 27 '12 at 17:59
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After much fiddling, i ended up going with ogmrip. It's pretty good and seems to able to rip most discs. There's still a hardcore of discs i haven't been able to rip though.

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