Hi downquark 1
if your card is a radeon I would recommend the official ATI MMC 8.1 - the DVD player therein is a vast improvement on previous releases - I use it myself on a Radeon AIW 7200.
It's available from
http://www.blisware.co.uk/all_products_atiparts.htm
for less than £6, including postage
- only downside is it won't work with region free drives.