Recover data from XBox hard drive?

[dlb]

A friend's XBox took a major the other day and he gave me the hard drive saying "try to save my stuff". I'm not 100% sure what his "stuff" is, but is it even possible to recover data from an XBox hard drive if it's plugged into a PC? I hooked it up thru a USB port, and all that Windows tells me is that it's an unrecognized format. And that's only in Computer Management > Disk Management. I can't even access it thru My Computer. So, I'm assuming that it's a totally different filing system. I even tried running some data recovery apps on it. Easy Recovery Pro didn't even recognize that a drive was connected, and PCInspector reports the drive as 0.00mb in size, and therefore says that no data can be recovered. I haven't done any research yet, this is my first stop.... so, any ideas out there??

Thanks.