That's probably the problem then - my DVD player is a few years old now and just doesn't like RWs. Thanks for that.

Burning to DVD-R results in a fully useable disk - watchable via the PC and DVD player. Burning to DVD-RW results in a disk that is not playable in my DVD player. Is this just a function of my specific DVD player? Should some makes of DVD player recognise RW disks? It would be very nice if RW disks ...