Wholeheartedly agree with these guys :iagree: the Plex Premium is a very good drive in nearly every way. I also have a Liteon52327s, and I think the Plex is better for sure. Not only does it give very good burns every time, but as Pianoman said, it's the ONLY drive that can make backups of Securom protected discs,well other drives can, but you have to use the TwinPeaks method.
Not to mention, between the liteon52327s, the asus5232, and the plex premium, the closest I could come to a "perfect" Safedisc 3.x protected disc copy, was with the Plex. Tried many softwares and a bajillion combinations of setting etc, and Plex Premium as both reader AND writer, made copies that worked in the most drives, only with Discjuggler burning soft. With some other softwares (alcohol, clonecd, fireburner, etc) the liteon or asus did better than the plex. But Plex+Discjuggler was the best ones, been several months now though since I've even burned CD's, cept maybe an occasional data disc.
I'm not knocking the liteon though, it's a good burner too really, but I think Plextor took their crown back with this Premium drive. Either drive should serve you well, good luck with whatever your choice