On Saturday 07 October 2006 06:50, Grant wrote: > > > I think I'll stick with: > > > > > > dd if=/dev/dvd of=image.dvd > > > > That won't work on CSS scrambled discs. You'll copy the scrambled data > > but not the key. Instead, use vobcopy followed by growisofs. > > What about this (it's what I've been doing): > > lsdvd && dd if=/dev/dvd of=image.dvd > > Is there any advantage to creating an ISO filesystem out of the image > if you aren't going to burn it?
yes. ease of transfer, keping everyting togther. still playable with xine dvd://path/to.iso why are you naming it image.dvd instead of image.iso? > Also, is there any way to compress > the image without doing any kind of transcoding or that type of > reprocessing? > the mpeg streams on the dvd ARE compressed. thats what the mpeg codec does. You can try the usual suspects - zip, bzip etc, but you won't get far. programs that reduce the size of DVD9 so that they will fit on a DVD5 usually requantise the stream, I am not sure what that means, but it is much quicker than transcoding to another codec like xvid. xvid will, of course, give you a much smaller avi file. the analogy with flac is not really appropriate. flac is a lossless compression, you start with an uncompressed wav file and end up with a losslessly compressed audio file. A DVD is already lossy compressed to mpeg2, so it is not logical to make an analogy with flac. As I said, you can requantise, but of course you lose something... > - Grant -- gentoo-user@gentoo.org mailing list
