Linked by weildish on Sun 18th Jan 2009 23:32 UTC
Hardware, Embedded Systems Remember those lovely laser discs that education systems seemed to so lovingly embrace back in the 80s and 90s? The discs resembled what today's children would probably call a giant DVD, and these would be placed upon a massive tray to be sucked into a player twice the size of your VCR (VCR? What's that?). All of the memories associated with these players may bring tears to the surface, but you're going to have to face the truth sooner or later: Pioneer just ended production of its last three laser disc players, meaning that replacements for the said players, assuming you own one, will now be gone... forever. Stock up and buy a couple, and you'll be able to enjoy those massive discs for years to come instead of using them as frisbees. Honestly, though-- how did the laser disc player last this long?
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RE: Laserdiscs
by lfeagan on Wed 21st Jan 2009 05:25 UTC in reply to "Laserdiscs"
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Just thinking about it from a theoretical standpoint (and given the technology of the time), one can readily deduce that CAV would have a lower capacity (constant angular velocity at a large radius = low data density) but would be capable of easily handling freeze-frame. Conversely, CLV yields a higher capacity but the need to constantly vary the drive servo speed would result in a very challenging situation (for the poor soul tasked with developing the drive servo micro-controller) if trying to freeze or step frame-by-frame.

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RE[2]: Laserdiscs
by Johann Chua on Wed 21st Jan 2009 05:53 in reply to "RE: Laserdiscs"
Johann Chua Member since:

CLV freeze-frame was done with digital memory.

Reply Parent Score: 2