Icepir8icepir8 released a new revision of Xbox 360 Commander Beta, a Windows utility to backup/restore, transfer on and format Xbox 360 hard drives.

What's new/fixed (since rev. 12):
* Pulled all the stops on speed. (rev 13)
* Couple tweeks here and there. But it is the transfer speed on the insert file that takes the cake. (rev 13)
* Error Checking Hard Drive is actually doing something now. (rev 14)
* Still have to do fix errors code. but atleast you should be able to check your drive for errors. (rev 14)

Official Site: n/a, by Icepir8icepir8 on forums.xbox-scene.com
Download (rev 14): here