You have captured the audio and video and burned this onto a CD. This won't play in a hi-fi. If you just want the audio you need to find an option in Nero to capture just the audio. Windows Movie Maker (part of XP) has an option to im[port audio, but I'm not sure whether you can do this from a DV camera.
-------------------- OK OK I can't go any faster! aaaaaaaaaaaagh!