Strange thing with the Daigasso game

I encountered something strange with the Nintendo DS Daigasso ROM on my SuperCard CF card which I still don't have a complete explanation.

I converted the game last night with SuperCard convert application 2.431 last night, and it was all going well for a while. However, when played the game after work on MTR, I found that the game hanged at the very beginning. I have to reconvert and put the ROM back in CF card again. However, the save file was OK. So I think it's probably the ROM got corrupted.

Strange indeed, though.