I'm thinking of ordering a PC with a DVD+/-RW drive I look on Amazon, and I see various formats of discs I can buy such as DVD-R & DVD-RW DVD+R & DVD+RW Which should I use? I am not that interested in the re-writable function - I simply want to be able to burn a DVD and then watch it and keep it, I am not bothered about recording over the disk. Pros and cons of each format - performance/price considerations etc. appreciated. Additionally - I backup my PC on CDROM and take a copy to work. CDRoms are so cheap I don't use re-writable. Could I backup on to DVD - and have the same benefits - but just with the extra storage? Thanks Noz