are you softmodded or hard modded?
if your hard modded it doesent matter any ide hard disk will work.
not sure about that particular WD model but i havent seen a WD thats not lockable yet.
here is a list of all known lockable WD hard disks.
"just because its not on the locakble list dosent mean its not lockable"http://xboxdrives.x-pec.com/?p=list&v_...amp;v_postedby=
and here is the non lockable WD list
"agin just because its not on here does not mean it is lockable"http://xboxdrives.x-pec.com/?p=list&v_...amp;v_postedby=
This is only importaint if your soft modded