ATAPI LG CDROM not working

[Giacomo Cariello <jwk@bug.it>]

I cannot mount cdroms or play cd audios with the following cdrom:

atapiscsi0 at pciide0 channel 1
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <LG, CD-ROM CRD-8240B, 1.19> SCSI0 5/cdrom 
removable
cd0: can use 32-bit, PIO mode 4, DMA mode 2
pciide0: channel 1 interrupting at irq 15
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)

Any mount command on cd0c or cd0a returns "Input/output error".

I updated cdrom firmware from 1.04 to 1.19 with no result.

I'm running OpenBSD 2.8-current and /dev/cd0* devices are up-to-date. The 
kernel is a GENERIC.

Any clues? If atapi support developers want to try and fix it, I can give 
full access to the box. I also have CVSed up-to-date source in /usr/src.

Giacomo Cariello, jwk@bug.it
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