On Wed, 2006-03-15 at 14:30 -0800, Eric Bliss wrote: > On Wednesday 15 March 2006 14:04, Joseph wrote: > > > > If I use: > > > > dd if=/dev/dvd of=backup.iso > > > > > > First of all, I would add the "bs" option to increase the buffer and > therefore > > > speed. Something like: > > > dd bs=100000 if=/dev/dvd of=backup.iso > > > > No, this command didn't work either, I got about 700Mb and it quit, > > though the light in the drive was flashing nothing was copied to ISO > > file. > > > > > > > > > I only get about 2Gb file and it stops or freezes, the disk is bout > > > > 4.3Gb > > > > > > That would indicate read errors. Is the dvd scratched or dirty? Wash it > with > > > lukewarm water and dishwasher liquid and try again. > > > > DVD is brand new, no scratches. > > > > You said earlier that the disk was unencrypted. Is it a disk that you made, > or a disk that you purchased? I ask because I heard a while back that some > DVD manufacturers would create their disks with intensionally bad sectors as > a kind of copy protection. You could be running into a problem with that, if > it's a manufactured disk rather than a burned disk.
No, the disk (DVD) IS NOT encrypted, I created is using dvd-slideshow (some family photos), so the original ISO that I burn to DVD disk was about 4.3GB. For curiosity I tried to get it back from DVD to ISO file and I run onto problems that I can not solve. -- #Joseph -- gentoo-user@gentoo.org mailing list
