DVD READ_BIG errors

[Joe Talbott <josepht@xxxxxxxxxx>]

Hello,

When I try to play a DVD with mplayer I get the following error
hundreds of times:

kernel: acd0: READ_BIG - ILLEGAL REQUEST asc=0x6f ascq=0x03 error=0x00

I am able to mount the dvd and navigate around without getting these
errors.

Here's the dmesg bit:

acd0: DVD-R <PIONEER DVD-RW DVR-K16A> at ata1-master PIO4
cd0 at ata1 bus 0 target 0 lun 0
cd0: <PIONEER DVD-RW  DVR-K16A 1.63> Removable CD-ROM SCSI-0 device 
cd0: 16.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present

Full dmesg here:

http://www.xenno.com/dfbsd/dmesg-20061210.txt

Thanks,
Joe