The simple answer is error correction. DVD +R has a SLIGHT advantage over DVD -R, but the difference is really unnoticeable to the end user. DVD -R also has a 5 year lead over DVD +R and is more prevalent in consumer electronics.

The difference is really moot as most DVD players can read either +R or -R formatted discs.

See the Wikipedia article for information overdose regarding both formats: http://en.wikipedia.org/wiki/DVD-R
Source(s):
Wikipedia, and we use DVD -R at work. :)


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