There are other people who keep long standby times. I hadn't seen anyone mention the 20 minute limit before Peter's bug report. This might be a new "feature" of a 2.0beta. Hopefully someone with a long standby will post to comment.

I dohave mine set very long now, but only to avoid having to reboot the player when I dart quickly into a store or to get my hair cut (car's parked right outside the window, in view).

Bruno