From: davem@col.hp.com (Dave K. Martin)
Date: Fri, 7 Jun 1991 14:36:06 GMT
Subject: Re: MMR Compatibality
Message-ID: <18730005@col.hp.com>
Organization: HP Colorado Springs Division
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!sdd.hp.com!hp-col!col!davem
Newsgroups: comp.sys.amiga.hardware
References: <1991Jun6.164504.3263@mnemosyne.cs.du.edu>

So far, I've had no compatibility probems with my Mega-Midget Racer on anything
I've tried it with.  It worked just fine with my old Expansion Technologies 
Flash Card controller and is currently working with a GVP Series II controller.
The MMR has also been very compatible with memory boards (I don't have 32 bit
ram for the MMR yet :-( ) and software.  Only a couple of European demos won't 
run in 68030 mode but by switching down to 68000 mode, they run fine.
I tried a 68020 Midget-Racer from CSA and it would work with either the Flash
Card or the 8-up board but not both.  The tech rep a CSA said the Midget Racer 
was not terribly compatible with most add-on stuff but that the Mega-Midget 
Racer so far has worked with virtually everything in their (CSA's) testing.

Some of the games I play will display nasty lines and garbage on the screen at
times but I've never really done any back-to-back testing with the 68000/68030
modes to determine the cause.  The garbage I'm seeing may well be from the 
games being run from a hard drive and not the floppies they were intended to 
be run from.

Even without the 32 bit ram, the 25mhz MMR makes a noticible difference in 
overall speed.

Hope this is helpful....
davem