Hi, sorry if these seem really easy, but darned if I can't find the answer. Which is compatible with the most players? -- DVD+R or DVD-R? I want to burn a home movie and want it to be able to play in just about any system I can find. Second, is there a program that will tell me what format a disk was burned in originally? And where would I find such a program? I want to try and match up the source and the new blank disc as close as possible. The original has no designation on the disc itself. Thanks for any help!