Just rename 271-s1.rom in 271-s1.bin. Just replace ng-lo.rom (CRC32 : 5a86cff2) with ng-lo.rom (CRC32 : e09e253c) in your bios neogeo.zip. http://bioshouse.free.fr
In using Ciccior techniques (Thx to him for roms names locations), it's very easy to replace Encrypted sets + Alternative sets with SVC, Powerin4, Samsho5 & others on the same default.xbe.
It's all the same to me really, although I'd like to see KOF2003 on EGCG NRX. Yes, but if kof2003 is released on a special version of NRX made by EGCG, maybe P roms don't allow to run on Nebula & Winkawaks Loader.
In fact I know, the 3 SF3 opus : Street Fighter III : New Generation ; Street Fighter III 2nd Impact : Giant Attack ; Street Fighter III 3rd Strike : Fight for the Future. I know SF3 W Impact (New Generation + 2nd Impact) & SF3 3rd Strike were out on DC, but I don't understand why it's in this topic ("worst fighting game"). This game seems to be excellent.
M1 (128 Kb) & M1 (64 Kb) is in fact the same thing, because when U split the first one (128 Kb) in 2 parts, U can notice the 2nd part (64 Kb) is a dummy file. So, M1 (64 Kb) is useless.
U need registration, but it's free : http://www.emu-zone.org/ http://kof.94game.com/kim/du/index.htm http://emubar.net/ http://www.emucn.net http://allgames.gamesh.com/kof/index1.html http://emuother.com http://kof.94game.com/k3team/main.htm
271-m1d.bin -> 512 Kb is wrong. The file is x 4 -> i.e : Sound Driver(ROM)Ver 1.9 00/03/22 To SNK appears 4 times. Correct 271-m1d is 128 Kb, just split the one of 512 in 4.
So, have you tried to find this message on forums like http://www.emuother.com, http://fightbbs.yeah.net, http://www.emu-zone.org or http://www.emubar.net if it exists ?