Tried to replicate your process... On Fri, 2004-01-30 at 10:24, Douglas Kojetin wrote: > I have had the exact same experiences, except here are my problems > (with some other random info): > > --> I'm using DVD-RW media, which burn & verify OK under OS X. > > What I did: > > dvd+rw-format -force /dev/cdrom > mkisofs -r -v -J -V data -o file.iso data_dir > growisofs -Z /dev/cdrom=file.iso >
all went well up to here > The burn /seemed/ to go OK, but when I tried to verify it ... > > 1. cmp /dev/cdrom file.iso > --> got an I/O error I didn't get an I/O error on the cmp, but I did get this: cmp: EOF on file.iso instead I tried my usual way of verifying cdrs: $ md5sum file.iso 4f4a3c033db17cd090544932351eb970 file.iso $ md5sum /dev/scd0 1862d022ca6cc665d45693663a8f545b /dev/scd0 intersting... isoinfo on both the /dev/scd0 and file.iso come out the same... might have something to do with the UDF filesystem on the actual dvd. > 2. find /mnt/cdrom -type f -print0 | xargs -0 md5sum >| ~/digest.disc > --> got an I/O error > This got no errors. > I was hoping that upgrading the firmware of the unit might help out, > but ... not sure! Again, it seems I can burn things just fine under OS > X with the *exact* same media. I've tried it with 2 DVD-RW discs. > > Anyone know why I might get an I/O error ... bad burn? media? > read/dma settings? > > Doug > Just off hand, make sure you're using ide-scsi on that drive. You probably wouldn't have gotten that far without it though. I guess this means it's media or the drive... here's my scsi_info to compare to yours # scsi_info /dev/scd0 SCSI_ID="0,0,0" MODEL="LITE-ON DVDRW LDW-451S" FW_REV="GSB4" > > On Jan 30, 2004, at 10:15 AM, Timothy A. Chagnon wrote: > > > I just got a lite-on dvd burner over the holidays, and it took me a > > while to get it going. At first I tried using dvdrecord (branch off > > cdrecord) but it was giving me errors. The growisofs program that > > comes > > with dvd+rw-tools works though to make the filesystem and burn. If > > it's > > a dvd+rw you need to use dvd+rw-format to format the disc once before > > the first burn. I haven't yet gotten dvdrecord to work yet, but > > growisofs works for my usage. -- Timothy A. Chagnon <[EMAIL PROTECTED]> -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ TriLUG PGP Keyring : http://trilug.org/~chrish/trilug.asc
