Nice site to help identify features included with different brands/models of DVD burners
http://www.dvdplusrwm.org
IMHO I would choose a DVDR that allows you to change the bitsetting (headers) on DVD+R(W) disks - helps to create maximum compatibility with DVD players.
FYI Plextor doesn't support the changing of booktypes, whereas MANY other burners DO (e.g. liteon, ricoh-based burners, etc...)