I have got a problem on preloaded Windows vista home edition on my laptop. Actually whenever i try to burn dvd it complets the burn process sucessfully but unable to play that dvd on computer neither on dvd players. When i noitced the space of DVD actually windows vista doesnt read that dvd-r for 4.7 GB but shows 4.3 GB while i tried on other pc running windows xp n everything went fantastic burning etc and it shows full space 4.7 GB of same dvds. Can anybody help me out how to resolve the problem???