with ver. 1.4 tweaker?? (i know you can set the write speed in BW5 to slow is that maybe why it worked at 4x or the media you were using was 4x max) the reason bw settings dont work for me is the media im using isnt recognized by my drive..hence my need to manually override that setting but as R!CO said its not easy to do. It would be easier if bw5 just let us override the write speed..i dont think it would comprimise the simplicity of the program without the ability to control the writespeed bw5 for safedisk anyways is useless to me.