I'm using the internal hard drive. Also, have had multiple instances were pressing pause only pauses VIDEO, while AUDIO continues. I did a reset once and my girlfriend said she just turn the HR21 off then back on and it started working again. 0x18F = Not so stable. Come on DIRECTV get this thing working consistently. 1. Get PPV working. 2. Get search working and usable. 3. Remove channels I don't want from the guide and scheduler. 4. Fix Prioritizer so I can actually edit Series Links even if no episodes are scheduled. Perhaps 5. DLB!!!! (okay pipe dream) 6. OTA??????????????????? After all I was told I would be getting an HR20 by multiple DIRECTV employees. There will be a solution blah, blah, blah. Vaporware anyone? I am not using CE here! P.S. Why is it you can't actually schedule anything from Scheduler?