USB drive doesn't show up on my XP system

I hooked up a USB drive to my DVR to epxand my recording time. The DVR reformated the USB hard drive. It turns out this drive is not compatable with the DVR. I would like to use the drive, as it is brand new, so I am trying to hook it up to my XP system. the drive shows up in the Device Manager as disk 4, but it does not show up in Disk Management. I also ran the "diskpart" utility. It does not show up in the "list disk", but I can "select disk 4". But when I do select it, I can't do anything to it. Any suggestions on how I can reformat this disk to use on an XP system?
 
Maybe the manufacturers manual will would be helpful. Can you provide me with the make an model?
 
This is a shot in the dark. But if you have time and the means to do so, here is how I'd approach this:

Download a gparted live release and put that on cd/usb.

Boot from that.

Find your USB drive, be certain you have the right one, and delete everything.

Let gparted do its thing, shut down, boot into Windows.

Partition as normal.
 
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