Thanks sleepless.... you are right (as usual, lol!), I feel like a right thicko as after I posted my query I got to thinking about when I burned the OGG files... anyhow I just checked out WMP and Realplayer, and they both have the option for burning audio CD rather than data cd for whatever file you use!
It's just that this is the first time i've thought about converting the files as I usually just stick em straight into my MP3 player. DOH!
I just thought it was luck when I burned the OGG files onto a disc and it worked... unbeknown to me that WMP had done the converting for me.
Cheers.