Baffled is right. The utility from the manu is best. The only problem with all of them is that each one will not work with other manu's drives. IBM's is called DFT, WD's is dldiag, and Maxtor's is powerdiag (I've never owned a Seagate :Q ). IBM's and WD's utilities include their own version of DOS, so you just DL the utility and decompress to a floppy, then boot from the floppy. Maxtor's utility does not include DOS, so boot from a bootdisk or a Win98 CD and then run it from a floppy. Low-level formatting or "writing zeros to a drive" is very healthy for the drive and could extend its life. Of course, it does completely erase the drive, including any data, file systems, MBR's, or partitions...