I have a XP PRO, Sp 2, fully updated, 2 separate Hard Drive system. The 2 Hard Drives are Raid 1 Mirrored. QUESTIONS: IF I DEFRAGMENT the C-Drive (the only drive that I "see", will it Automatically and Simulataneously also Defrag the Mirrired Drive? Similarly, If I ERROR CHECK, will both Drives be EC'ed ?? Thank you in advance, imoDOTcom.