Genesis checksum issues

[FlamePurge]

Hello, everyone! More Phantasy Star troubles! Long story short, I suddenly got the urge to try this lost little series again one day. I ragequit before and lost all my info and hacks--good thing that I was only doing simple text hacks. I did lose the Phantasy Star IV .TBL data, though...

Anyway, for some reason, Kega Fusion won't read my modified Phantasy Star II and Phantasy Star III ROMs. It says, "Checksum incorrect!" and displays a red screen with no sound. I know for certain this is my ROM, but I can't seem to find anything that will lead me to modify, correct, bypass or otherwise alter the checksum after some searching on the Internet.

Any help is welcome and appreciated!

[Djinn]

Fix checksum with that program:
http://mi.tsdx.net.ve/genSuite/gs_en.htm

[FlamePurge]

Thank you very much, Djinn! ♥

[Azkadellia]

Also, Kega Fusion has a fix checksum option in it's menu.

[Tony H]

Here's a guide on how to make a Game Genie code to disable the checksum check, or you can hack/patch the GG code into the ROM to permanently disable the checksum check.

http://codehut.gshi.org/ImprovedMasterCodes.txt

[FlamePurge]

Thanks for all the information, everyone. My issue is fixed now.