Lots of READ_BIG errors on my new cd drive

I recently got a new Dell Latitude D620, and I've been having a lot of
problems with the CD drive that comes with it:

acd0: DVDR <PHILIPS DVD+/-RW SDVD8820/AD15> at ata1-master UDMA33

I get a lot of errors that look like this:

acd0: FAILURE - READ_BIG HARDWARE ERROR asc=0x3e ascq=0x02

On CDs and DVDs that I've recorded on other drives, that I've recorded
on this drive, and commercial ones.

Any ideas on where to start looking?

Doug

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