Shoutbox

It might be something to do with the CD(or DVD) you are using.

For example; my mum and dad's car stereos, don't play CD-RW, But do play just normal (blank until I burn music on)CDs.

Other than that, make sure you are inserting the disc into a DVD-RW disc drive, and that the burning application you are using, is looking at the right disc, etc.