Yeah, the sound has definitely improved by a boatload. Even on my cheapo speakers, the sound effects are infinitely more crisp and detailed. Bass also seems a lot fuller (sometimes too much so). I haven't paid much attention to sound while watching DVDs, but right now, it's kind of hard not to.

Also improved by a lot are subtitles. Whereas DVD subs look pixelated and aliased viewed on a HD TV, Blu-ray subs are nicely rounded and smooth like baby buttocks. Plus, there's often a huge selection of languages available - imagine my surprise when I found Chinese subtitles available on some of the movies. This ain't a big deal for most people, but it's nice when, for example, my parents can watch and understand some of the films as well.

I got Tekkon Kinkreet yesterday. Haven't watched it yet, but it's supposed to be ace