What's the most common formats dvd players run?

DVD+R is more likely as the media book type can be marked DVD-ROM

DVD book type - Google Search (http://google.com/search?q=DVD+book+type)


For advanced reading websearch up some dox on intratrack wobble of DVD+R

Start with this
Why DVD+R(W) is superior to DVD-R(W) on CD Freaks.com - Reviews (http://www.cdfreaks.com/reviews/Why-DVDRW-is-superior-to-DVD-RW/)