Hi, I have tested arts-3.3 all I can say is that the performace is incredible poor! I was not able to play a single mp3 on my P166MMX. Here is what I have done: start artsbuilder get from server "example_mixer_simple" execute structure start artsmp3 I had a cpu load of 75% and it clicks all the time. Even it is very flexible, it should as well be fast enough to play a single mp3.(IMHO) I donīt know where the problem is, or if I have done something wrong, but speed _is_ an issue for a multimedia framework. regards, Martin