Plextor is one of the most well-known and prominent manufacturers of optical drives. With over ten years of experience, chances are, you’ve probably owned a Plextor drive in the past.In this review, we will be taking a look at one of Plextor’s external Blu-ray readers, the PX-B120U. Blu-ray discs are becoming commonplace and if you have an older system, you may not have a BD-ROM drive and will be unable to enjoy the latest movies released in the high-definition format. This is where the PX-B120U comes in with its ability to read Blu-ray discs, DVDs, and CDs.