First.....I am very poor in English....^ ^

I am trying mid file in Nokia s40 and s60.

I find some midi file can be play by s60 and can not play by s40.

I try to use Nokia PC Suit: sound convert.......it can convert mid to sp-mid.

1. Convert a mid file and directly send to Nokia s40 phone..........can play.
2. Convert a mid file and save to pc and send by WAP Push.....can not play.

The screen will show "can not open that file".

The saved-mid file is bigger than directly send to phone by PC Suit.

Does anyone know what I can try?

Thank a lot