IBM PC Formatted DSHD Diskette H=2, C=80, S=18, B=512, Size=1.44MB
WD Caviar AC140 Drive H=5, C=980, S=17, B=512, Size=42MB (Our default disk)
WD Caviar AC28400 Drive H=16, C=16383, S=63, B=512, Size=8.4GB
Seagate Barracuda ST380021A Drive H=16, C=158816, S=63, B=512, Size=80GB
MaxtorDiamondMax D540 Drive H=16, C=317632, S=63, B=512, Size=160GB
Some of the major hard disk manufacturers are Maxtor, Western Digital, Seagate, and IBM. You may find useful information on any of these manufacturer's sites.