The 3rd Birthday modding - music swapping
The 3rd Birthday uses sscf files for its music (the actual audio is an at3, but the sscf is a container apparently). So long as the new sscf is smaller than the original, custom music should be doable. This video has one of the battle tracks in place of a non-battle track. I tried swapping out a file that was larger than the original, but the iso failed to load. Maybe this can be worked around?
The 3rd Birthday uses sscf files for its music (the actual audio is an at3, but the sscf is a container apparently). So long as the new sscf is smaller than the original, custom music should be doable. This video has one of the battle tracks in place of a non-battle track. I tried swapping out a file that was larger than the original, but the iso failed to load. Maybe this can be worked around?