When i try to make a vcd using nero vision 4 i load up the file i want to use but for some reason when i preview the audio is really crackly and very poor quality no matter how good the original file is, basically unlistenable.

The vid quality is fine and i burnt a vcd thinking it might go away, it worked fine apart from the audio being rubbish.

Am i being stupid, do i have to do anything to the files before i burn them using nero?

All i can assume is i've got the wrong codecs, but it seems weird that it plays the sound but just very bad quality, surely the wrong codecs would mean no sound at all?

Thanks for any help in advance