I know this has probably been asked before, but allow me to do it anyway. What is the technical differencies between dvd+r/w and dvd-r/w, and how does it differ practically when using the media in ...

I have had some crappy luck recently with a couple of DVD-R backups of mine - one won't read at all (it has all my software downloads on, not critical but annoying) and another had all my general ...