DVD+R, DVD+R DL, DVD+RW
The DVD+RW ALLIANCE (Dell, HP, Mitsubishi Chemical, Verbatim, Philips, Ricoh, Sony, Thompson, Yamaha) - this site contains white papers and presentations outlineing the fundamentals and use of the +R format. This format is not recognized by the DVD Forum but has some tremendous technical advantages over the -R format and has tremendous industry support.
.