The original video CD disk wasn't a laser based digital disk. As I recall CD stood for capacitance disk. An analog recording method based on differences in capacitance (as in farads). There were two types. One that came a little later. I can't remember which but one actually used a needle like phonograph. I think it was the CD type. That one within a year was replaced by the second type which I don't even remember the details on. Then came the the Sears Roebuck video tape recorder that was quickly killed by Betamax and those video disks were as good as dead. This is all from a somewhat foggy memory so I could be wrong on some details. Madrachod@xxxxxxx wrote: > >In a message dated 2/7/2005 9:16:58 P.M. Eastern Standard Time, >Build_A_Computer@xxxxxxxxxxxxx writes: >However, the technology didn't appear in the marketplace until Philips and >Sony came out with the compact disc (CD) in 1982. > What about those 12 inch video disc's? As far as I can remember, they >were the first laser-read discs, a few years before cd's. > >Optical disc offers a number of advantages over magnetic storage media. An >optical disc holds much more data. > Then, why is it that a cd can only hold 79:57 of music and an open reel >tape can hold up to 6.5 hours (or more) per-side. > > Dale > > >For a web-based membership management utility and information on list >policies, please see http://nibec.com/24hoursupport/ > >To unsubscribe, send a blank email to 24hoursupport-request@xxxxxxxxxxxxx with >"unsubscribe" (without quotes) in the subject. > > > > > > For a web-based membership management utility and information on list policies, please see http://nibec.com/24hoursupport/ To unsubscribe, send a blank email to 24hoursupport-request@xxxxxxxxxxxxx with "unsubscribe" (without quotes) in the subject.