Thank you very much! I just got one for my Canon XHA1 as well! My unit came with firmware version 1.
The hard drive is recognized as the little DV icon turns green when connected, but whenever I hit the record button on the camera, it turns red (recording) for a half a second then turns back to green. Nothing is recorded.
I tried doing some research on this device and some people stated that the Canon XHA1 did have some compatibility issues with this device and I was wondering if a firmware update would fix it. If not, it is a broken unit that I need to return.
My email address is niceties55@gmail.com if you would like to send it that way!
Thanks a lot!