Hi, Can someone explain the DVD RW to me please. I was under the impression that DVD R was write once If you rceorded a 30 min program then thats the disc finished with DVD RW was re-writeable If you recorded a 30 min program then you could come back at a later date and record again up till the disc's storage limit and then its finished with. However, i was told by a shop assistant, that didnt look confident in what they were saying, that you could write over a whole disc time and time again, very much like a VCR Tape. Is that true, and if so is it any special format or just a plain dvd recordable machine? Thanks, Hazzie.