The only thing that I know is definitely better is that radeonhd will do 16-bits. I have tried some timings and they look similar.do not know if it is better in any way
BTW, I am looking at gxine video now--I would gladly defer to anyone who knew what they were doing. I am going to assume first that some codecs are missing, or dependencies for some codecs. It is an interesting theoretical problem, but i believe RealPlayer is very good with playing videos. They have been behaving decently for the last 10 years One program with all the codecs appeals to me over one program with 30 independent codecs. But RealPlayer does not play ogg and flac audio so it is no good to me for that. I might add it to Quickpackage, but we also want to fix gxine.