SuSE 8.1 AXP boot.iso strange booting behaviour

Hi,

I have a Digital PWS 433au, SRM version: Console V7.2-1 Mar 6 2000
14:47:02
I created the boot CD from the boot.iso of 8.1 AXP. While trying to boot
from SRM console (boot dkc300 -fl 0 or -fl i) I got the following
messages:
unknown partition type
then
failed to send Read to dkc300.3.0.2004.0
iso_read_super: bread failed, dev iso_blknum 18
ufs_mount: superblock read failed (retval = -9223372036854775808)
unknown filesystem

while trying to switch another p 1 - 8 I got
by p2, p4, p5, p6, p7, p8
unzip: unknown compression method

by p1 and p3
the same messages as described before: failed to send Read... etc etc
etc...

I had to have made an error somewhere but I don't know where. Could you
give me an advice please?

VV

PS: I tried to burn the CD on the given PWS also using cdrtools-2.0.1a13
as follows: cdrecord -v speed=2 dev=0,3,0 boot.iso
The device is a Matshita CW-7503 SCSI CD Writer booting SuSE 7.1 AXP
CDROM without any problem.