I have HR21-700 for a couple weeks now. It freezes one or two seconds into a playback frequently. When it happens, you can fix it by resetting the unit. Reseting the unit takes many minutes and it stops your recording. Thus it is not a good solution. The problem will come back again within an hour or longer than that. I could not find a pattern for it to be reproduced. Also when this happens, changing channels becomes very slow, taking more than 6 seconds. Does anyone see the same problem? If you do, do you know a fix for it? There are discussions about this in DBSTALK below.
HR21-700 Playback Freeze - DBSTalk.Com
HR21-700 Playback Freeze - DBSTalk.Com