lotus



previous page: 2.17 Can I remove RCA VideoDiscs from their caddies and play them inmy LaserDisc player?
  
page up: RCA SelectaVision VideoDisc FAQ
  
next page: 2.19 I've heard of a CED player called the VHD system that doesn't usegrooved discs. What is this?

2.18 I've heard there are special LaserDisc players that can playCED's. Where can I get such a player?




Description

This article is from the RCA SelectaVision VideoDisc FAQ, by tom@cedmagic.com (Tom Howe) with numerous contributions by others.

2.18 I've heard there are special LaserDisc players that can playCED's. 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.


 

Continue to:













TOP
previous page: 2.17 Can I remove RCA VideoDiscs from their caddies and play them inmy LaserDisc player?
  
page up: RCA SelectaVision VideoDisc FAQ
  
next page: 2.19 I've heard of a CED player called the VHD system that doesn't usegrooved discs. What is this?