ROM Hack edited games using saves

[Konamix02]

If I used something like that program to reverse engineer sound in THAS and put my own sound in, would I still be able to use the original save for said game?

 

[FAST6191]

You probably would not be able to use any instant saves but your normal savegames should work fine.

As for the custom soundtracks I started about 10 other projects so I never really took it that far but there was some tools over in a thread at GBADev you might be interested in:
http://forum.gbadev.org/viewtopic.php?t=10421
Let us know if you get anywhere with it.

 

[Konamix02]

yeah I was trying to do it in THAS but I just found out that you cant recompile sdat files using sdattool. I guess i need to find one that does.