Lifebook E8010 - can not use cdrom

[CleanPHP Team]

Hi

after long time googling and lists.freebsd searching, i'm hopefull to
find the solution for my problem in the right place

so, i was unable to install FreeBSD 6.1 RELEASE from cdrom.
after boot up from the cdrom, it says my cd looks more like audio one,
than FreeBSD disc

weel, i gave up, and instaled the system from FTP

system stands up, Xorg + Gnome works great

but ...

i can not use cdrom!

dmesg says: 
acd0: DVDR <HL-DT-ST DVD-RW GWA-4082N/CG02> at ata1-master UDMA33

verbose dmesg says "Unretryable error" when try to read from device

mount /cdrom says:

mount_cd9660: /dev/acd0: Invalid argument

The last strange thing - on another(non BSD) systems, this device works
properly.

did anybody encountered such problems?

Thanks