I got a Micro Advantage 52x32x52x CD-RW drive from OM ages ago when they were $5 AR as a back-up.
I forget who makes it and what it compares to.
The serial # begins with a "P" and is followed by all numbers.
I'm thinking it's a BT.
Who makes it?
What model of their's does it compare to?
What is the bet firmware for it?