On 12-Oct-01 Alexander Feigl wrote:
> Did you try to read the TOC of a data CD-ROM with cdda2wav too? It might
> sound stupid to use cdda2wav to read the TOC of a data CD-ROM, but a CD
> recording front end cannot know if there is a data CD-ROM or a CDDA
> inserted in the drive.


Hmm... I can't remember that. I *do* read data and audio toc with cdrecord,
that works. It would be an option to always use cdrecord to read the toc,
check the reported toc types and continue accordingly.


> It might be a problem with the SCSI controllers we use. Which controller
> do you use?

An older 2940UW (no ultra 2). Only one channel, older SE mode. 
Thats why I was asking you to check where you connect the CD drives to your
U2W card.

 
> I connected both drives to the SE mode connector. And termination should
> be Ok. Everything works - from high data rate CD ripping to reading TOC
> with cdda2wav. I checked aic7xxx verbose output to check if the
> automatic terminators on the SCSI controller are correct too. 3 things
> have to come together to cause the problem :
> 
> 1) I use cdrecord -toc to read the TOC
> 2) a CDDA disk is inserted in my drive
> 3) I use my Plextor PX32TS 
> 
> If I change any of these 3 items, it works without problems.


Strange. I know that I read regularly CD toc (data, audio and mixed modes)
using cdrecord on the Teac burner (56S) as well as on the Plex40.
I don't use cdda2wav for reading toc (didn't even know it will do that
without any further ripping).

Terminators are active (or the ones on a Ultra device)? Your card may use
high speed signals which have more agressive flanks then the pure UW
standard. A passive termination is probably not able to handle that.


K.-H.


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