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Re: Problem using a TEAC DV-W22E with dvd+rw-tools/cdrecord-prodvd/dvdrtools.

>From: Pav Lucistnik <pav@oook.cz>

>> If you need information about FreeBSD kernel bugs, ask the
>> FreeBSD kernel team!
>> You definitely need to replace your kernel with a working one!

>There was a deficiency in kernel that it does not provided sense codes
>automatically, as required by specifications. This problem was fixed in
>CVS, but 5.2 and 5.2.1 releases does contain this problem.

The fix is approx. 1 month old....

>dvd+rw-tools were teached to obtain sense information from kernel
>manually, so they fully work on 5.2.1. cdrecord relies on working
>autosense and thus don't work on 5.2.1.

I would call this behavior of dvd+rw-tools a bug as the CAM standard
requires auto-sense to work. If FreeBSD is fixed, the modified
dvd+rw-tools will stop working in case it correctly evaluates
error codes.

>The help here is not easy. I'd suggest you to upgrade to -CURRENT, if
>you're ready to face all the possible problem of running CVS code.
>Other posibilities are running FreeBSD 4.x or avoid using cdrecord.

Cdrecord works perfectly with this drive. You howver need a working
kernel if you like to use cdrecord.....because cdrecord evaluates
error codes and the SCSI protocol is a protocol that relies on correct
"error codes" that simply provide a way to return some special status back
to the application.


 EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
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