One of the requirements for an HTPC for me was remembering playback and the ability to "Bookmark" certain points of a movie. For me I ended up with Dell Zino PC's which they don't make any more (at least that I know of) and went with Windows XP and for play back I use an old version of Xlobby for my graphical front end and TheaterTek as my DVD play back software. I have been using this combo for years. I don't know if Theater Tek Supports Blu Ray. That said does any of the suggestions mentioned here remember play back and offer the ability to bookmark things? I am always interested in finding something new / better.