Hey all. I just got a new Liteon Dual layer writer, but haven't really used it yet. I'm confused as to what the difference is between the DVD + and - formats. A guy told me that the - is used for movies and the + for data. What I would like to know is, if I'm putting a bunch of songs, videos, roms/emulators, etc. does it matter whether or not it goes onto a + or - R? Also, when I copy a dvd, what type of DVDR must I copy it to in order to have this play like a normal dvd in a regular dvd player? Learning how to copy the DVDs themselves is something I still have to learn how to do but I see lots of articles on this site for that so I will read. I'm just wondering about the + and - for now. Some people tell me there's no difference, some tell me there is.