"To return to the specs of Plextor's fastest, you can see that it features a 2MB buffer to help prevent the annoying buffer underruns we all know. For those who don't know what a buffer underrun is, let me give a brief explanation. A buffer underrun occurs when your hard drive can not supply the data fast enough to the writer. This means that the writer will stop and wait for the hard drive to catch up. With a normal cd writer (read: without BURN-proof or something alike) this means you have a "toaster" or a bad cd >=/. "
FULL STORY @ OVERCLOCKERSONLINE (http://www.overclockersonline.com/index.php?page=articles&num=74)