Ive heard there are special LaserDisc players that can play CEDs. Where can I get such a player?
I wouldn’t call these LaserDisc players, but RCA had a number of laser-based optical readout devices in their plant that were used in conjunction with VideoDiscs. The purpose of these machines was to perform contact-free playback and high-speed optical measurement of masters, stampers, and sample discs. The copper masters were quite reflective, so RCA was able to use an optical readout station to verify they were defect free before making the inverse-replica stampers. High speed defect detectors were also available to scan about 100 grooves at a time for defects. None of these units were designed or intended for consumer use, since they were costly to construct, and the smallest of them was the size of a kitchen range. The entire September 1978 issue of the technical journal _RCA Review_ is devoted to the topic of VideoDisc optics.
