Before I forget, our friends over at CD Freaks have taken a look at Philips' latest DVD±RW, the DVDR1648. Here's a sample of what they had to say about it:
The two new features - SolidBurn and Overspeed introduced with this drive seems to be an excellent combination. If a DVD±R is good enough for 16x, it will write them at 16x. If not it will adjust and lower the writing speed, until a new suitable speed have been found and learned.
The DVDR1648 impressed CD Freaks enough to earn their "Safe Buy" award. If you'd like to read more, their entire review can be found here.