Hello, my question is, if i make an iso from a backup burned in a dvd+r can i burn that iso to a dvd-r

yes you shouldn't have a problem burning the backup that way, as long as the first backup worked. one failsafe way is to extract the files from the disc,then recreate the iso. baut, I ahve had succes making direct copies.

Thanks, i just didn't want to waste a disc.