I use 2 sata drives, each formatted to two - drives then are C,D,E,and F.
Degragment found 0 fragmented files on D, 20 on E and 26 on F, all degragged quickly.
But on drive C it found 2033 franmented files. An "analyze" by windows defrag and PerfectDisk8 each found 2.
Started defrag on C - it ran just over an hour and a half, and stopped. When it started it showed defrag 4.93% done - It never got over 5.10% done.
Closed the program, opened it again and did a defrag analyze on C. This time it showed 2042 fragmented files. Again it ran about an hour and a half and stopped.