Does anyone know what's on this disk?

[CritAnime]

I am guessing some sort of driver software?

http://www.cucug.org/amiga/amiinfo/reviews/AmigaTecM1438S.txt

The Monitor will work on any Amiga but you really need to
be using AGA to get the most out of it.          
You'll also find the following software invaluable in        
getting the best from the monitor.  All of it can be        
found on Aminet.          

gfx/aga/1942PatchAGA.lha    Patch monitor drivers        
gfx/aga/MonEd3a.lha        Edit monitor drivers        
utils/boot/Monitor3.0Patch.lha    Patch monitor drivers

[CritAnime]

Try Aminet.