Protection - FileForums

21-06-2005, 10:58

sucubus

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Protection

Hi all!

Some Dreamcast games have some protections beyond the usual LBA check.
Do someone knows what these protections are? I mean, for example, Jet Grind Radio (extracted from Rip Database):

00004518 01E4 -> 00E4
0000451E 0ED2 -> 0900
01E0 -> 0900
0222 -> 0900
0000453A 07D3 -> 0900
01E2 -> 0900
2223 -> 0900
00295408 6EB0 -> 5A2E (45166 -> 11866)

What these changes means? Why changing them make the game work? :-)

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