After successfully transfering 3 hours of HD content to my USB storage (it took 30 minutes), I started a larger transfer that estimated about 3 hours to complete. I had periodically been checking on it and the progress meter was moving fine. Then while scrolling the EPG, the page buttons stopped working, cancel wouldn't work, no buttons would do anything. I noticed the hard drive lights had stopped flashing. I waited it out and eventually (about 2 minutes later) the buttons started working and hard drive started flashing again. The problem is now the progress meter is completely blank and there is not estimated completion time. I am just going to let it go and see if it completes OK, but I hope this isn't going to become a bigger problem. UPDATE.....The transfer completed fine, but not without everything hanging up one more time for a short period. I suspect that when the transfer pauses, for whatever reason, all operations also pause.