lotus



previous page: 2.19 I've heard of a CED player called the VHD system that doesn't usegrooved discs. What is this?
  
page up: RCA SelectaVision VideoDisc FAQ
  
next page: 3.1 How many different CED's were pressed?

2.20 I have a different-looking caddy labeled Thomson-CSF with a 12"disc inside. Is this a new version of the CED system?




Description

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

2.20 I have a different-looking caddy labeled Thomson-CSF with a 12"disc inside. Is this a new version of the CED system?

This is a disc used in the Thomson transmissive optical disc system, a
contemporary of the RCA VideoDisc system targeted to a limited degree at
the industrial marketplace in the early 1980's. This system is no longer
supported, and it is mere coincidence that Thomson presently owns RCA's
Consumer Electronics Division. This system had the then distinct feature
of having two levels of pits which the laser could track simply by
refocusing itself. So unlike the DiscoVision system in the early 80's,
both "sides" of a Thomson-CSF disc could be played without flipping the
disc over. The system was quite sensitive to dust and fingerprints,
hence the caddy-housed discs.


 

Continue to:













TOP
previous page: 2.19 I've heard of a CED player called the VHD system that doesn't usegrooved discs. What is this?
  
page up: RCA SelectaVision VideoDisc FAQ
  
next page: 3.1 How many different CED's were pressed?