Awesome, using mp3 instead worked.
It might be worth mentioning in the wiki though that the SX1 has the same problem with installing (seems to check C for space) as some other devices.

ScummVM 0.8.0 S60v1 version works perfectly on the Siemens SX1. I had to extract the files manually from the sis, but after that there where no problems. Sfx, music and speech all seems to work (although my ears hurt a little from the volume). I have tested MI1, MI2 and Sam & Max, they all seem ...