Strange DVD-RW error

oneandoneis2 · 07-09-2005, 06:10 PM

I upgraded from a CD-writer to a DVD-writer. And it works fine on smaller files.

But I've got a set of files that I want to back up that total around 2.7GB - plenty of room on a DVD for that, right..?

But I get an error every time I run cdrecord-prodvd. And although the files are all on the DVD and all the exact same size, most of them fail to work, with only one or two of the 17 files being readable (the last few to be burned).

I've tried using mkisofs with the split-output flag to burn the DVD from smaller files, but no joy. Are my CD-Rs no good, or is it the drive, or the software..?

Bruce Hill · 07-10-2005, 05:41 AM

Quote:

Originally posted by oneandoneis2
None of this really makes much sense to me. Are my CD-Rs no good, or is it the drive, or the software..?

Anything else you want to know?

Yes ...

(1) What command are you issuing to try and burn?
(2) You ask, "Are my CD-Rs no good," but you are using DVDs, aren't you?
(3) Which kernel are you running?
(4) How is you drive setup in the kernel? Are you using scsi emualtion, or setup as an ATAPI device?
(5) Have you tried growisofs? This is proper for DVDs.

And, these two lines

Code:

WARNING: Phys disk size 2298496 differs from rzone size 2297888! Prerecorded disk?
WARNING: Phys start: 196608 Phys end 2495103

seem to indicate a problem with the disc size.

(6) Have you tried with brand new discs?
(7) Are you burning as root?

Jörg Schilling says:

Quote:

As the Sense Key 0x5 (illegal request is illegal in combination
with sense code 0x10, I would guess that this is a buffer underrun.
A buffer underrun usually ends up in an illegal request key as the
next write operation after the underrun will use an illegal
sector address from the point of view of the drive.

Now lets discussw why a buffer underrun may occur:

1) Disabled disconnect/reconnect on the SCSI bus

2) Incorrect termination on the SCSI bus

3) A bug in the scheduler or pager in the kernel.

oneandoneis2 · 07-10-2005, 06:04 AM

Righto:

1) A shell script with the following contents:

Code:

#!/bin/sh
CDR_SECURITY=8:dvd,clone:sparc-sun-solaris2,i386-pc-solaris2,i586-pc-linux,x86_6
4-unknown-linux,x86_64-pc-linux,powerpc-apple,hppa,powerpc-ibm-aix,i386-unknown-
freebsd,i386-unknown-openbsd,i386-unknown-netbsd,powerpc-apple-netbsd,i386-pc-bs
di,mips-sgi-irix,i386-pc-sco,i586-pc-cygwin:1.11::1130000000:::private/research/
educational_non-commercial_use:amz80r0cFc22rStnPatPW6OJPHS44.xCl2LPIpyKt.SuICSsG
TMY7YzsmFT
export CDR_SECURITY
exec cdrecord-ProDVD "$@"

With the parameters

Code:

-sao dev=/dev/hdd

2) Yes, that was a typo. . . they're DVD-Rs, not CD-Rs or DVD+Rs

3) Linux-2.6.11-gentoo-r9

4) No SCSI emulation involved as it's a 2.6 kernel

5) No, I haven't tried growisofs yet

6) I've tried with multiple discs from the one pack that I bought, but I haven't yet tried another batch of discs as I don't have any available right now

7) Yup, can't burn without being root on my setup

Bruce Hill · 07-10-2005, 07:27 AM

I never used cdrecord-ProDVD, as I try to stay away from Jörg Schilling's apps now if I can. He has a rotten attitude about Linux, and is not working with Linus and the kernel guys, but against them.

I think you might find some answers here. Check the version you're running, and those notes.