Stefan, >>Any ideas, how I can display alternating background images while >>replaying music? >> >> > >For me it seems that one have to wait until the device audio >buffer is empty or the firmware will freeze. > >>From my experience it's enough to wait for usleep(80000) to >prevent a crash (see mp3 plugin code). > > Thanks for your immediate help -- 80000 usec is indeed enough and does not interrupt playback either. Lars