true DVD+R is superior to -R in every way on the physical level. it's less susceptible to defects, and actually easier to read. the reason ppl recommend -r is that it's pretty much idiot proof. if you use a sw mod or flat cable hw mod (limited in the same way) it will accept +R only when the booktype is set to ROM. and yes gcos is the way to go, it will boot right away with a hw mod.