Joined: Apr 22, 2013 Posts: 21 Location: South Carolina
Posted: Sat May 11, 2013 3:56 am Post subject: Bypassing Dreamcast Protections for GDI2CDI Converisons
Written by MILF and atreyu187
Protection Cracks
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Search and find 5EB0 0000 hould be changed to 9600 0000 twice in almost every game, normally these tend to be near the end of 1ST_READ.BIN and if there are more than 2 instances, they should be the two that are nearest together. If there is only one instance of this, DO NOT MODIFY IT, THE GAME IS NOT PROTECTED IN THIS MANNER. This pertains to AUDIO/DATA 11700/11702 selfbooting methods. Those of you using orignal LBA 45000 DATA/DATA or AUDIO/DATA do not have to worry about doing these hacks to the main binary. Though I do suggest using DATA/DATA over AUDIO/DATA as the audio is non-compressable data which will result in a lager image once compressed.
You may want to try these if a release does not boot:
Search and find 10320D8B and change it to 08000D8B (Super Street Fighter II X, Super Puzzle Fighter II X Ooga Booga [more to be found in Ooga Booga I am afraid)
Search and find CDE4436A and change it to 09000900 (Confidential Mission, Metropolis Street Racer, Rez, KOF 1999-2002)
Search and find CDEB22D1 and change it to 090022D1 (Evil Dead Hail to the King)
Search and find 02E0046A and change it to 00E004A0
Search and find 0BD23732028B and change it to 0BD20800028B (De La Jet Set Radio, Jet Set Radio)
Search and find 13E11022 and change it to 09E11022
Search and find 038926D324D40B43 and change it to 0900090009000900
Search and find 78A01A0C8E5D000070A3230C7AC9040058C9 and change it to D8A81A0CB4400200C0AB230C63A604004C45 (Virtua Striker ver.2000.1 (JP only tested so far)
atreyu187 Xbox-HQ Enthusiast
Joined: Apr 22, 2013 Posts: 21 Location: South Carolina
Posted: Thu May 16, 2013 2:54 am Post subject:
Found a new protection scheme today, thought i would update. Working on KOF 2001 as well. This enables the intro music to be played on Gigawing 1. The rest are all standard hacks to enable CDDA playback.
Search for 0x493ae: 21 8b 23 a0 29 47 and change to 0x493ae: 09 00 23 a0 0c e7 to enable intro music on Gunbird
KOF 2001 has the same problem where all but title screen music plays back fine. Once I dig in a little deeper I will post my results on defeating that protection.
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