Multisession CDRs

[Daniel Eisenbud]

Hi,
	I'm trying to track down an apparent bug that causes the SCSI
bus on my mac to freeze when I try to burn a disk in disk-at-once mode.
I have three questions for you: have you ever managed to burn a disk
with cdrdao with any options on your powerpc machine?  When it fails,
does it lock up the whole SCSI bus, renedering the machine unusable, or
can you go on without a reboot?  And finally, what kind of hardware do
you have?

Thanks,
Daniel Eisenbud

On Sun, Nov 19, 2000 at 03:02:08PM -0500, jingai <jingai at floatingpenguins.com> wrote:
> This may not be the appropriate list to post this on, but since it
> does work on my x86 box at work, here goes...
>
> I'm having trouble burning multisession discs with cdrdao.  My
> TOC file is as follows:
>
> CD_ROM_XA
> TRACK AUDIO
> FILE "audio.raw" 0
>
> TRACK MODE2_FORM1
> DATAFILE "data.raw"
>
> And the command line:
>
> cdrdao write --multi --device 1,4,0 my.toc
>
> Here is the output from cdrdao:
>
> Cdrdao version 1.1.3 - (C) Andreas Mueller <mueller at daneb.ping.de>
>   SCSI interface library - (C) Joerg Schilling
>   L-EC encoding library - (C) Heiko Eissfeldt
>   Paranoia DAE library - (C) Monty
>
> 1,4,0: YAMAHA CRW6416S  Rev: 1.0c
> Using driver: Generic SCSI-3/MMC - Version 1.0 (data) (options 0x0000)
>
> Starting write simulation at speed 6...
> Pausing 10 seconds - hit CTRL-C to abort.
> Process can be aborted with QUIT signal (usually CTRL-\).
> Using POSIX real time scheduling.
> Executing power calibration...
> cdrdao: No such device or address. Cannot set SG_SET_TIMEOUT.
>
> It is apparently failing on the power calibration, but with the same
> CD writer at work, it does not fail here.
>
> My second problem happens both on x86 and PowerPC.  If I
> specify the --multi option to cdrdao, it fails shortly after the
> burn begins (it does write some data to the disc though) with
> a buffer underrun.  If I omit the --multi option, it burns fine
> on x86.  Seeing as I am trying to burn a multisession disc,
> it's kind of necessary (I think?) to specify the --multi
> option.
>
> Both boxes are running Debian woody and kernel 2.2.18pre21.
>
> Any help would be greatly appreciated.
>
> Regards,
> Jonathan

--
Daniel E. Eisenbud
eisenbud at cs.swarthmore.edu

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