I have P2E 5.6 with video builder. Used it once, very succesfully, to produce a DVD. However, now whenever I try to create a DVD from a project, all goes well until I have clicked the appropiate options followed by "next". At this point I get a message saying "warning - your disc is not empty". This is with a new disc!! I have tried both DVD-R and DVD+R with the same effect. Presumably -R is preferable as more widely acceptable. Any advice? Thanks