ok i used windows media player burn software to convert it to audio file and it plays in my cars.

heas a wierd thing...im using a external burner ok.

if i have my external burner hooked up to my desktop and its burned. den it will only play in my desktop and wont read in my desktop.

if i hook up the same burner to my laptop and burn it. den it will only play in my laptop and not my desktop.

why does it do this? it shouldnt matter where its burned. the only difference between my laptop and my desktop is one has 1.1 usb and one is a 2.2 usb.
but they are both using the same burner

but it seems to be working in the cars.