a good few questions turned around the complex 'Why can't I download Midi-tones with a 7650 ?'
The solution for this is so simple that it can take ages to find it, for you can not see the wood for the trees.
Yes it is a MIME problem, but the solution is soooooo simple :
The Nokia 7650 does not like the .mid extension !
It insists on .midi !!!!
We tried for days and were close to suicide and then just tried renaming the file from whatever.mid to whatever.midi, added the .midi MIME to our IIS and five seconds later the ringtone arrived on the phone.
It is weird it is not standard (from the clients perspective) BUT IT WORKS. Simple as that.
So all CP's out there put the Smith and Wesson back in the draqer (as opposed to the mouth), rename your files, add the MIME extention and start selling :-)