Thanks for a quick reply

Yes, of course, i meant only one drive at a time
I have a WD 160GB Passport drive i've been using with my previous Sony HU, and now i would like to use it with 9600.
What i'd like to find out, is if i will be able to navigate through folders and files on the drive, like i can do with files on the CD. Here is a screenshot of what i have in mind from the headunits manual:
