The guys at CD Freaks have put together a review of NEC's new "Super-Multi" drive, the ND-4550A. Here's what they had to say about it:
The NEC ND-4550A being a so called "Multi Recorder" and supports recording on currently available media formats (CD-R/CW, DVD+R/+RW/+R DL and DVD-R/-RW/-RAM/-R DL).

The NEC ND-4550A can write CD-R/RW media with excellent/very good quality, and can write those media types at high speed. DVD±R/RW writing quality is good with most media, and once again the NEC ND-4550A can burn the media fairly quickly.
If you'd like to read more, head on over to CD Freaks and check out their review. Want a second opinion? Our review of the ND-4550A can be found here.