Hi, > The 2.6 kernel's CD/DVD driver has the unfortunate propensity to read > ahead past the end of a CD/DVD. It then reports an error, even if the > actual read request was completely legitimate. See, for example, > <https://www.redhat.com/archives/fedora-list/2005-March/msg02774.html>
Are there really such errors with DVD now ? With CD there is an embarrassing tradition for that. > The conventional work-around is to always pad when writing a CD/DVD. > growisofs can burn a pre-mastered image. It would be nice if there was a > way to ask it to add to this burn a specified amount of padding. > > The only way I know of accomplishing it is to actually pad the image > file. Not very elegant or convenient. (It breaks any signature too.) I pad my growisofs streams while filtering them through a checksum program. It adds a checksum tag and the usual 300 kB which i also pad to CDs. Just being cautious, though. I never got reports about real DVD read-ahead bugs. > One suggestion: implement -pad and -padsize options. Did you already try something like this ? ( cat imagefile ; dd if=/dev/zero bs=2K count=150 ) | \ growisofs -use-the-force-luke -dvd-compat -Z /dev/sr0=/proc/self/fd/0 > ... Essentially, it means that some options are not > supported when growisofs is doing all the work itself. growisofs forwards options of mkisofs but not those of cdrecord. mkisofs option -pad should be active by default but this padding is added to the image file. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
