Sony has a track record for switching chipsets as they move along from model to model. The DRU-540A used the same Sanyo chipset that is used in the PX-712A. Upon entering the 16x game, Sony switched to MediaTek as its supplier for the servo controller and analog signal processor for the DRU-710A/720A units. Now, Sony has changed their chipset to that used in BenQ’s DW1640 as well as Plextor’s PX-740A. More info about this optical drive can be found in anandtech.com's full test report..



Link: AnandTech