I have custom music added , but when i send my hack to my friends (both versions , ips patch and rom) they get bad rom error..?
Does it work for you? If so, there may be something you didn't send them that they must have, if not, maybe the rom got corrupted or something, and it would be best to transfer the levels. Remember to always make a backup when workking with addmusic, it can screw up your rom pretty badly.