'GMA'
Author:Nate (guest: search)
Date: Tue, Nov 01st, 2005 @ 15:18 ( . )

What's GMA?


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'GMA'
Author:Pete Rittwage (guest: search)
Date: Thu, Nov 03rd, 2005 @ 18:30 ( . )

On 11/01/2005 @ 15:18, Nate wrote :
What's GMA?
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Hi Nate,

GMA is used on many Firebird releases, mostly European, but it is on a few NTSC titles. It is also known as "Securispeed 2" as it identifies itself that way sometimes. It uses timed transitions from syncs to $55 bytes on track 38 to replace a piece of data in the main program so that if that track isn't copied exactly, the program crashes or acts otherwise strangely.

Pete


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