DVD burner with verify option?
in [UK Linux]
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From: Ian Rawlings on 20 Nov 2007 18:17 Hello all, does anyone know of a convenient drag 'n' drop DVD burner package like Gnome Baker but one that has a verify facility? Given that I find DVD to be the most dodgy of all the storage mediums I'm surprised that there's no verify facility on all DVD burning software. BTW I know about programmes like diff -r etc, but when you've built a DVD by dragging in files from all over the place you can't just do a simple diff -r that easily. I'll experiment with burning images I think rather than straight from the original files too. -- Blast off and strike the evil Bydo empire!
From: Big and Blue on 20 Nov 2007 18:32 Ian Rawlings wrote: > Hello all, does anyone know of a convenient drag 'n' drop DVD burner > package like Gnome Baker but one that has a verify facility? k3b has a "Verify written data" checkbox, if that's what you mean. As you noted, another possibility would be to make an iso image, burn that, then run checksums of the mounted image against the resulting mounted DVD. I have a Perl script that does that (generate and compare cmd5sums) for me.... -- Just because I've written it doesn't mean that either you or I have to believe it.
From: Ian Rawlings on 21 Nov 2007 02:20 On 2007-11-20, Big and Blue <No_4(a)dsl.pipex.com> wrote: > k3b has a "Verify written data" checkbox, if that's what you mean. Sounds like it, alas I'd have to install most of KDE to get it to fire up so I'll bear it in mind. > As you noted, another possibility would be to make an iso image, burn > that, then run checksums of the mounted image against the resulting mounted > DVD. I have a Perl script that does that (generate and compare cmd5sums) > for me.... I'm just amazed that DVD is still so dodgy. -- Blast off and strike the evil Bydo empire!
From: Ian Rawlings on 21 Nov 2007 07:05 On 2007-11-21, Paul Martin <pm(a)zetnet.net> wrote: > cmp dvd.iso /dev/dvdrw Yes I know that's possible, but it's not as convenient as software that supports directly checking the files that have just been written. The ideal thing to do would be for the software to MD5SUM the files as they are being read off the source media to be burned, then once burnt, MD5SUM the files on the DVD and check the lengths and checksums match. That would be the most efficient route. Burning to an image then writing the image to DVD then comparing it is far more long-winded. > I get very few bad burns (much less than 5%). I do tend to use the > better brands of DVD blanks (Plextor, TDK, Verbatim, etc.) and have a > Pioneer burner, and I don't write them faster than 8x. I've got a pioneer burner but despite supporting it, it won't successfully burn dual-layer DVDs of any variety, even on imation or verbatim media. My plextor USB one handles it fine and reads them all back fine, and the pioneer will usually read the DVDs burned in the plextor, although on one burned last night it gets occasional read errors and fails the verify, which doesn't happen in the plextor. Even the plextor failed on Maplin's "Mr. DVD" brand of dual layer media.. The pioneer also burns far far slower than the plextor, despite the plextor being the older drive. The pioneer is standard fitment in the intel mac mini core2 duo models (which I run linux on). -- Blast off and strike the evil Bydo empire!
From: Nix on 21 Nov 2007 17:05
On 21 Nov 2007, Ian Rawlings said: > On 2007-11-20, Big and Blue <No_4(a)dsl.pipex.com> wrote: > >> k3b has a "Verify written data" checkbox, if that's what you mean. > > Sounds like it, alas I'd have to install most of KDE to get it to fire > up so I'll bear it in mind. Well, you'll need kdelibs (or whatever packages your distro splits that into), and may well need kdebase too. GNOME has the same sort of huge sprawling dependencies: it just splits them over about a million separate upstream packages where KDE uses just two. -- `Some people don't think performance issues are "real bugs", and I think such people shouldn't be allowed to program.' --- Linus Torvalds |