I recommend
Verbatim DVD-R format they never failed me when i used to burn my movies to disc but i never burn to disc anymore the future is streaming, unless you're doing it to lend to other people.
Play.com are good for discs but not the cheapest.
If it HAS to be DVD+R then i'd get these for quality.
http://www.play.com/PC/PCs/4-/333751...k/Product.html
http://www.play.com/PC/PCs/6-/Search...searchsource=0