Warpengine SCSI + Teac CD-R56S

["" <amiga-fan@gmx.de>]

I have an Amiga 4000 with a Warpengine Turbocard. On the SCSI-Port 
are 2 IBM DCAS 3430 and a Teac CD-R56S connectet.
I`m running Debian 2.2rev7 with Kernel 2.2.10.

Everytime when i use a CD-writing tool (cdrecord or cdrdao) the driver
shows Messages like this:

cdrecord -scanbus

Cdrecord 1.8 (m68k-unknown-linux-gnu) Copyright (C) 1995-2000 Jörg Schilling
Using libscg version 'schily-0.1'
scsibus0:
0,0,0  0) 'IBM     ' 'DCAS-34330      ' 'S65A' Disk
0,1,0  1) 'IBM     ' 'DCAS-34330W     ' 'S65A' Disk
0,2,0  2) *
0,3,0  3) *
scsi0 : datain+dataout for command Mode Sense (10) 00 3f 00 00 00 00 00 08 00
53c7xx: Non-aligned buffer with datain && dataout
scsi0 : datain+dataout for command Mode Sense (10) 00 2a 00 00 00 00 00 02 00
53c7xx: Non-aligned buffer with datain && dataout
scsi0 : datain+dataout for command Mode Sense (10) 00 2a 00 00 00 00 00 26 00
53c7xx: Non-aligned buffer with datain && dataout
scsi0 : datain+dataout for command Mode Sense (10) 00 2a 00 00 00 00 00 26 00
53c7xx: Non-aligned buffer with datain && dataout
0,4,0  4) 'TEAC    ' 'CD-R56S         ' '1.0P' Removable CD-ROM
0,5,0  5) *
0,6,0  6) *
0,7,0  7) *

As a CD-ROM drive the CD-R56S works fine.
What this Messages mean??? 
A simulated CD-copy with cdrdao tells me that the copy is not usable.

Thanks... Volker