maxell, you're spot on!
Haven't got access to XP, but a friend has just confirmed what you say.
Oh
What a Mickey Mouse mess.....good old Microsoft/Philips/anyone else involved. How useless is a disc of 4.7GB capacity which only allows access to one session? How many 4.7GB sessions do they think we do?
CD and DVD technology/compatibility/reliability/standardisation is rubbish.
My television DVD recorder has also just refused to recognise a new box of Philips DVD+R discs. Here's me thinking I'd pay a bit more for some quality discs........ah well.....back to the good old cheapo Tesco discs. They probably self destruct in (cue "Mission Impossible " music) two years.