The HR22 is the same as the HR21 but with a 500gb hard drive.
Originally Posted by Watermonkey
So what about the new HR22 series? I've gone through one already, but I'm assuming it was just a dud. The new one is doing fine so far. It's flawless so far with recording, but I don't have a HD TV to watch it on so I don't know about the video quality.