it thought of writing myself a device driver, too; but then i thought of some cheap programs that used to work for win95 and they managed to do well without any ddk. and besides that, you got software and hardware fifos you can setup to whatever size you need so even when you're synchronizing with the frames on a very slow machine it should be enough picking up some KBs each 10, 20, ...60 secs to keep up... i think one must be able to fix this by altering the timeouts... maybe you got some other ideas... thanks Я люблю русский языкь!