I have found RTT v. 12 that claims to be universal, but it fails to install for me. Roxio website has nothing useful at all.
(I happen to have licenses for v. 11 and v. 12, so only looking for the dmg or pkg of the app, provided either of these is the latest Universal one.)
(I happen to have licenses for v. 11 and v. 12, so only looking for the dmg or pkg of the app, provided either of these is the latest Universal one.)