I have a DVR 810-H that is now stuck with a "Powering up" message. There was a previous thread about this problem a couple of years ago, and one suggestion was to try opening the drive manually, using a paper clip in a hole near the digital display. However, I have been totally unable to find the hole that manually opens the disk drive, and there is no information at all in the owner's manual about this. Can anyone describe in more detail how to open the disk drive manually? Thanks.