i dont know about princo i used 1 dvd and it worked fine i found leadtech which is same dye as princo but cheaper on price and they work great for me i have 4 games on them so far all work great like zoe 2 and 100pk cost 80$ free s/h and dose it hurt to burn games @ 4x cause i heard better to burn at slowest speeds then faster i always burn @ 1x and i h8 it takes forever