Following the original Data was the Data II. The Data II was different from the original Data mostly in its power supply. A whole new power supply circuit board was added which isolated the delicate re-clocking board from the rest of the unit. As originally conceived, the Data was only intended as a CD transport. People asked, naturally, why Theta was ignoring the opportunity to tune up the video aspects of the Data. Improvements to the video quality in Data II were much appreciated by videophiles, who quickly discovered that the Data was the best laserdisc player around for video quality.