What's the difference between DVD+R and DVD-R?

Whats the difference between dvd-r & dvd+r?

• Answer:

  As of June 2006, there is no physical difference between a DVD-R/-RW disc and a DVD+R/+RW disc. There is, however, a series of technical differences between DVD-R/-RW DVD+R/+RW recorder format. The DVD+R/+RW format offers subtle extra functionality for people who record their own movies and audio. The Standards Differences 1) The DVD-R (pronounced "DVD dash R") and -RW media formats are officially approved by the standards group DVD Forum. The DVD Forum was founded by Mitsubishi, Sony, Hitachi, and Time Warner, so it has tremendous industry support for its technical standards. 2) DVD+R ("DVD plus” R) and +RW formats are not approved by the DVD Forum standards group, but are instead supported by the DVD+RW Alliance. The DVD+RW Alliance is supported by Sony, Yamaha, Philips, Dell, and JP, so it also has tremendous industry support for its technical standards. Note that Sony supports both organizations. The Functional Differences The main functional differences between DVD-R and DVD+R are: 1) the DVD recorder's built-in defects management, 2) the way the recorders format and rewrite DVDs, 3) the price.