Ok, I am new here and if I am posting this in the wrong place would someone please point me in the right direction. I recently purchased a GloryStar system which came with the HDVR1200 receiver. After installation (which was way easier than I thought it would be) I started researching USB drives to use with it. The documentation for the receiver, which is very little, states that most USB2.0 drives formatted to FAT32 or NTFS should work as long as they have their own power supply. (that’s the way I read it) I wanted a drive that was durable and would stand up to continuous operation and decided that a desktop drive would be the way to go. I have used a lot of Seagate drives and had good luck with them and after reassuring my self that the Backup Plus line was truly backward compatible with USB2.0 (Seagate's information says so) I purchased a 2TB unit. When it arrived, I got it all ready to go, turned off the HDVR1200, plugged in the USB cable and then turned the 1200 back on. The receiver started up, showing the splash screen and then nothing but black. I tried to use the remote to change channel, volume, and several other functions but got nothing. The front panel buttons wouldn't respond either, only the power button worked to turn it off. I disconnected the USB cable and turned it on again and it worked fine. So I plugged it in again without powering down and after a few seconds a message popped up on the screen saying "No Connection" but behind the pop-up the channel was still playing. I disconnected the USB cable again and waited but the pop-up stayed, so I power cycled the receiver again and again it worked fine. I then took the Backup Plus and connected it to my Win XP laptop and after about 30seconds of installing drivers I could use the drive. I also tested it on my Linux desktop machine and it worked almost instantly. So I went to Seagate Support and asked them what they might know about the issue and because I assumed (incorrectly btw) that the problem was that the Seagate was trying to pull to much current from the USB port I asked them if they could check for me and then pass along what the actual current draw on the USB port was for that unit. Their response was that if I was having trouble with it working on my windows computer that they would be happy to help me, but that since I was trying to trouble shoot a problem with a DVR they couldn't. Then they said that a device might draw up to 1000mA from the USB port. That was not helpful. So, I cut up a couple of old USB cables and wired an Ammeter in series with the +5V wire and then connected it to my desktop computer and discovered that the drive only pulls 0.08 mA from the USB port. My conclusion is that because the Seagate is USB3.0 somehow the HDVR1200 receiver doesn't talk to the Seagate correctly so that it doesn't know to switch to USB2.0 and therefore the receiver freezes. I am hoping that a future firmware upgrade for the receiver will fix this issue. The moral here is don't try using USB3.0 devices that are backward compatible with USB2.0 with the GeoSatPro HDVR1200 at least for now. I hope this saves someone some stress.