I have my consistently best results burning Verb 16x at 12x on my LG 6147. Often 99 quality score with <100 PIF. Even better than I get with TY's (which are very good, burned hundreds). The LG just loves Verb, + or - though + is a little better. I use CloneDVD mostly for burning, but sometimes IMGburn when I encode with DVDRebuilder/HC. They burn equally as well. Can't notice any difference in burn quality (aside from compression rate).