I have not gotten my HDAdvance yet, but I will in 2 more days. Anyhow, I was wondering if you could use a Hard Drive that alreay has windows XP installed on it (the Hard drive) as a PS2 Hard drive as a way to back-up your games. If I can please tell me how. Thank you for your response. ----------- This is the HD Advance. http://www.modchipstore.com/PS2_HDAdvance_Version_20_Hard_Drive_Enabler_Disc-p-16188.html Also, I am trying to use a Seagate, Model ST3120022A 120GB, RPM 7200 Hard drive for my PS2.