The booktype setting is a feature widely supported by almost all recent drives, enabling the change of the booktype of specific media (DVD+R,+RW,+RDL) to DVD-ROM, to achieve maximum compatibility with stand alone players (mostly outdated ones). This can be achieved either prior to burning the inserted media or during the burn process (at the beginning, with Nero or other burning software).

from Plextools

from CD-DVD Speed

With the Plextor PX-755SA, you can set the booktype to DVD-ROM only for DVD+R and DVD+R DL media, while for DVD+RW there is no such capability. DVD+RW media will be burned by default as DVD-ROM.