I've just bought one of these, and whilst I'm very pleased with its versatility and recording options, I've noticed that I can't use DVD-RW discs in any of the other DVD players in my house (including a Pioneer DV-444), even after finalising the disc. I'm planning to replace the aforementioned Pioneer with another Sony at the end of the month, so that's not too much of a problem, but I'm concerned about running into more problems with this recorder. Surely it should be able to make compatable discs?