I dont actually use verbs, i use traxdata G04s at the mo. I have tested verbs both X4 and X8 -R.My player dont like them, ether wont play them or starts then stops.
Im not going to ditch my player as its a verygood player,multiregion,can turn of macro,plays vcd,svcds,dvdrs, ive test non compliant dvds(svcd-dvd) and its still going strong.It plays verb pastel ty discs and G04 fine.Its played G03, some mirror disc and has played the old datawrite gray tops. I use G04 Traxdata discs mainly.Plays any cdr i put in there. Only dvd-rs it has had any trouble with are verbs.