I tried playing some MP3s that I'd downloaded from eMusic.com last night and it crashed the HR20 twice. It would be playing just fine, no dropouts or glitches and would suddenly stop and show a "Cannot access Media" message. I'd press OK and at that point the box was dead, unresponsive to the remote or front panel and needed an RBR. Its a -700 running 0x168 I'm connected via a Linksys Wireless bridge to WMP11 on a dual-core Vista machine. Anyone getting MP3s to play reliably?.