QUOTE(Midnight Tboy @ Jan 25 2010, 06:16 PM)

well i've just tried my own method of getting the drive to work - and can confirm it works with no problems whatsoever.....and no messing with hex editing the hdd for those that dont want to or have problems doing that
So you only did these steps:
7. Connected 20gb drive back to pc, this time choosing a FULL image backup.
8. connected 120gb HD back to pc, restored the 20gb image onto it. This gave the results showing partitions 1-3....but partition 3 is corrupt
9. Connect 120gb to 360 - choose to format it again. This corrects the partition3.
10. 120gb drive back to pc, then copied over all save etc data into partition3 that I'd backed up previously.
11. As advised to help HD run more efficiently and not click boot to dos and ran a tool downloaded from Western Digital called wdidle3.exe. Ran "wdidle3 /d" which disabled the timer.
12. Back in 360 and working like a charm All 3 partitions available.
And it worked?
I'm looking at going from an OEM 20gig drive to a 500gig with the easiest method.
And does it change anything that my 20gig is coming from a banned console?