"READ_BIG timed out" errors on acd0

[Scott I. Remick]

Hello... I'm using 6.2-STABLE from Aug 8th. Trying to get a CD ripping 
program to work on this new box. Have used Grip in the past, also trying 
Sound Juicer but both are having issues... I think it's something to do 
with the drive. Here's what I get in /var/log/messages:

Aug 29 00:30:52 desktop kernel: acd0: WARNING - TEST_UNIT_READY freeing 
taskqueue zombie request
Aug 29 00:31:28 desktop kernel: acd0: FAILURE - READ_BIG timed out
Aug 29 00:32:05 desktop kernel: acd0: FAILURE - READ_BIG timed out
Aug 29 00:32:41 desktop kernel: acd0: FAILURE - READ_BIG timed out
Aug 29 00:32:41 desktop kernel: (cd0:ata3:0:0:0): cddone: got error 0x5 
back

And so on and so forth.

The drive is a Samsung SH-S183L DVD+RW connected via SATA:

acd0: DVDR <TSSTcorpCD/DVDW SH-S183L/SB01> at ata3-master SATA150

# atacontrol mode acd0 
current mode = SATA150

I think the freezes I get with Grip and Sound Juicer are related to these 
errors. Any suggestions?