.dmg suffix on Down Loaded Files

[Robert H . Baucom]

I have down loaded, Adobe, Apple and Stuffit Deluxe upgrades and they 
are all with a .dmg suffix. What is this crap. When I try to open one I 
get a "this program is not compatible with your system. My system is 
OSX and OS 9.2, whatsss happeninngg?

Tried my computer dictionary sites and Computer Encyclopedia sites and 
nothing comes up. Some with Sherlock.

RHB
The average person thinks he isn't. - Father Larry Lorenzoni
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