I've got a spare 500GB Maxtor SATA drive in a Coolgear 3.5" eSATA external enclosure that I originally tried to use with my Scientific Atlanta 8300HD cable box...I gave up on using the Maxtor with the 8300 because I kept getting stuttering on playback of recordings. I recently acquired the HR20 and tried yesterday to get the Maxtor to work with the HR20 via eSATA but I could not get my HR20 to recognize the drive. Does anyone know whether or not the reason it would not recognize the drive is due to it already being formatted for use with the 8300HD? I assumed that the HR20 would automatically reformat the external drive but when I went through the eSATA installation outlined elsewhere on this site I could never get the HR20 to accept the external drive at all (I tried the process 3 times). I'm running version 0x18a on my HR20 and recently upgraded my sub package to Premier after the recent launch of the new MPEG4 HD channels. The enclosure housing the Maxtor also has a USB port in addition to eSATA, and I tried hooking the Maxtor/enclosure up to my XP laptop via USB in hopes of possibly reformatting the drive...XP recognizes the drive and installs it but when I click on My Computer I do not see an icon corresponding to the Maxtor. Does anyone have any suggestions on what is causing these results and how I can go about trying to reformat the Maxtor drive? TIA!