What is the difference between dvd's?

Question

what is the difference between DVD - R and DVD + R?

Answer 1

DVD+ ("plus") and DVD- ("dash") are two competing DVD formats. You may remember the "war" between the Betamax and VHS formats for domination of the VCR market. The big difference with DVD+R vs. DVD-R is that there are hybrid (dual-format) drives capable of reading both types. Many companies have taken sides -- the DVD Forum is a group of manufacturers that support DVD-R, while the DVD+RW Alliance supports that format. Consumers have yet to make either format the winner.