I have a ViP-622 which seems to have lost at least two sectors. I can keep the bad sectors tied up on recorded programs that don't play, but once I erase them, the errors move to two other (future) recorded programs. Can someone tell me how to perform a low level format of the internal hard drive? This should detect and spare out the bad sectors. BTW, I am also a victim of the HDMI port going bad after more than a year of working fine. I never touch the receiver or the cable/connector so I believe that this is an active component problem, not a passive component problem (connector soldering issue) like some are talking about in other posts. Thanks for any help.