It is exactly what you thought. The music buffer ...and I thought that Winuae emulates that and if it is ok then ok. It is a problem on Hdd as well but faster. I am sad that it is so visible. Loading the whole music to ram if possible? ... i will try. It would be better if I find something for amos, like how to play audio cd in Cd32 , it would be a solution for the sound chanels too. I dedicate the channels... Player+enemies+events+music. So possible to change it but more managable like that. The stripes are the leafes (sprites) going off screen. ... Solvable.