Actually, it's the craptacular Matshita UJ-857 drive that comes stock in the MBPs that's the issue. It's a piece of... well... crap.
Matshita UJ-857 units flawed. zebra silenced by Apple.
That's just one resource about the issues with it, there are links on that page to the Apple Discussion forums which, in the Optical drive section for the MBP, are practically full of nothing but complaints about how... well... craptacular this drive is.
I went out and bought a Plextor 18x external drive and put it in a Firewire/USB enclosure for home use. On the go if I absolutely
must use a CD/DVD, then I'll use the internal drive, but that's the only time.
It's a pretty bad piece of hardware and Apple is just ignoring the complaints about it so far. Not good, not good at all.
bb
ps
Most Sony DVD media these days is made from Taiyo Uden blanks - some of the very
best DVD media made. Head over to
http://www.cdfreaks.com and read the forums - you'll see TY discs are highly favored by people serious about burn quality. Sony just rebrands them with the Sony name, but they're damned fine media and the only ones I've ever used for DVD burning.