Let the hive mind of Engadget get that for you.
"I need help! I want a small pocket camcorder but I'm not sure which one to get. I don't want to fall into the hype of the Flip because I worry two hours won't be enough. What should I be looking for when considering a small camcorder and where can I get a good quality one with expandable memory? Thanks!"
The only reason to buy HD-DVD is because it is cheaper.
Over half of 1080p TVs throw away 50% of the lines when converting from 1080i to 1080p, so it isn't the same. You are really watching 540 lines twice.
If LG makes a dual format player they will get sued by both formats since it is against the license agreement of both to create a dual format player.