The new version has improved features for sharing digital content in the home, but I wouldn't touch the software if I was using Media Center to record TV shows.

Actually everyone should read the release notes before installing this one, or maybe just wait until the final version that will presumably be done when Vista's ready next month.

Apparently there's a glitch that makes some recorded TV shows vanish after three days, degrading the TiVo-like experience of Media Center.

I wonder if there's some link to the copy prevention software used in the Zune media player, which also places a three-day fuse on licensed content. The Zune lets you share purchased songs with friends, but they disappear from friends' Zunes after three days, unless the friends buy their own copy.