Looking at the basic specs the PX-716A doesn't look anything special -
16x DVD+/-R, 4x DVD+R DL, 8x DVD+RW, 4x DVD-RW, 48x CD-R and 24x CD-RW.
However, a quick firmware flash boosted DVD+R DL speed up to 6x and DVD-
RW up to 6x, while also enabling DVD-R DL support. Of course there's
still no DVD+R 8x, DVD-R 6x or DVD-R DL media, so despite having the
ability, the drive couldn't prove itself in these areas. That said, like
all the drives I've looked at recently, the PX-716A did manage to over-
burn to 2.4x DVD+R DL media, turning in some blistering times.