[X4U] What type of drive will work?

[Dan A. Currie]

Hello All,

My MDD DUAL 1.25 MHz / 2 GB RAM / 120 GB and 200 GB HD / NETSCAPE 7.2 / 
OS X.4.11 is losing one of its drives.

According to the manual it can handle 6 drive / storage devices. The 2 
ATA / 100 bays and the 2 Optical bays are filled but the 2 ATA / 66 bays 
are empty.

My question is will an ATA / 100 storage drive work in one of the ATA / 
66 bays?  I would like to put a 300 GB ATA / 100 dstorage drive in one 
of the bays.

Thank you,

Dan A. Currie, Jr.