Organizations
OSTA
IRMA

Licensing
Philips

Magazines
Emedia Professional

For Information on DVD-R, DVD-R/RW and DVD+R/RW and questions in general on DVD see Jim Taylor's DVD Demystified site and in a\particular his DVD FAQ area.
This site is at: http://dvddemystified.com

For information on the DVD forum see http://www.dvdforum.org