As I stated all this working exactly as it was. I played some FF3 and some other SNES games then gave it up to play some other Wii games. few months later returned with no changes to get the errors. It is very inconsistent. Sometimes it plays for a few minutes, sometimes upon loading a NES or SNES game.
Backup any of your snes games and delete the snes folder in your main directory and try running the snes again.. This will delete your cache files if anything went wrong there.
Sent from my Motorola Triumph using WiiHacks