Asus N70SV does not boot

[David Demelier]

Hello,

We are trying to boot the amd64 8.2-RELEASE cd and it get stucks at the 
end of:

cd0: <hp DVDRAM GT20L DC05> Removable CD-ROM SCSI-0 device
cd0: 150.000MB/s transfers (SATA 1.x, UDMA5, ATAPI 12bytes, PIO 8192bytes)
cd0: Attempt to query device size failed: NOT READY, Medium not present 
- tray closed

Nothing happens, even five minutes later.. The motherboard is on a SIS 
chipset, do you have any clue on this?

Cheers,

-- 
David Demelier