DVD that other computers can't play

[Pierre Abbat]

I installed vlc and tried to play the disk. It came up with a menu 
saying "English/Español"; I picked one and tried to play one of the movies. 
It is now spewing an endless stream of the following error on the console:
acd0: setting up DMA failed
ata1: FAILURE - oversized DMA transfer attempt 100352 > 65536
At least that's farther than I got on Windows, and I understand the error. How 
do I fix it?

Pierre
-- 
li fi'u vu'u fi'u fi'u du li pa