My favourite Software DVD player (PowerDVD by Cyberlink) just got updated a few days ago to v7.x,
learn about the new updates and
download the trial.
I'm in the middle of downloading the newer Vista builds released a couple of weeks ago so I have yet to try it out:-)
Update +2Hrs Later...
I just tried it out... WOW! Lots of new options, redesigned GUI and nice new format support. First and fore-most is hardware-deinterlacing support and CLEV-2 enhancements - you can fine tune how much improvement you want (and this time we can actually see a proper difference!) Dual Display support is also there (Dual'ing with 2x2405FPWs at the moment) and looks awesome.
There seems to be some issues with DivX files compared to v6.x but apart from that its a good update, still have to try some HD clips...