I saw your post in the Blu-ray forum; thanks for the suggestion. Although not a Potter fan, I took your advice and bought the HD DVD to voice my support to WB to continue offering consumers a choice in high-def; also to check out the web features. Glad I did. I joined 10 friends from the forums at HighDefDigest for a "Community Screening", and we had a blast. The host in NYC controlled the playback of our HD DVDs accross the country when we accepted & joined his "Screening" invitation through the web feature menu on the disc. We could text message with pre-set messages in the A-B-C-D buttons on the player's remote, or, as must of us did, with cell / PDA / PC logged into the hddvd.warnerbros.com web site and type our own messages. Some of the comments cracked me up, and I learned more about the characters from the HP fans. We coordinated pauses for b-room & kitchen breaks, and re-played scenes when someone pointed out something others had missed.
Yeah, not the way you want to spend your first viewing of dialog driven film noir, but a fun and creative way to enjoy a light hearted movie. I look forward to more use of this from Warner - although that means continuing to buy their HD DVD versions as even though my Panny BD player is only a month old, it will never, ever be able to do something like this.