What Is Laserdisc?

for anybody who ever wondered...

... here's a fairly brief, tidy explanation of what a 12-inch LaserDisc actually contains, and how it works.

http://www.access-one.com/rjn/laser/legacy/ld96.html

the gist of it is that, although a lot of LaserDisc content is created from a digital master copy (hence the reason that many early DVDs were mastered from the same source as previous LD versions... and you'll see the phrase "digitally mastered" on a lot of commercial VHS tapes too), the disc actually contains a form of analogue video that's read by a laser.

this knowledge doesn't seem to be very common at all, and it took me a while to dig it up. it's prolly the kind of trivia that will impress some of your more geeky, tech-oriented friends when you drop the science on them at parties. :lol:

i always thought they were just huge DVD's :P

and they look like a huge record

http://www.hjemmekino.no/guide/bilder/2maslaser.jpg

how about this. :lol:

RCA Selectavision, a vinyl + needle based video disc format from the late '70s.

http://www.vinylvideo.com/DOIT_ANIM_small.gif

heck I love LD's I got about 200 and for the longest time, the ld version was the best version cause they didn't release it on dvd
like the star wars extended edition, back to the future and the indiana jones collection just to name a full
most have ac3 DD and only +/- 100 lor from a dvd


http://www.homecinemachoice.com/testbench/...erDVL-909.shtml I bought this one, well I ordered the 908 and they just upgreaded me to the next model

i have some laserdiscs, like recordes, although more like cds... i would like a DVD that was that big.. imagine the space... :blink:

Quote:

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Originally posted by SciManAl@6 December 2003 - 18:50
i would like a DVD that was that big.. imagine the space... :blink:

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yeah, but the trend is always going to be just figuring out ways to squeeze more data into smaller containers. the new formats like Blu-Ray DVD & such are all about using narrower tracks and increasing the number of readable layers per disc.

:D well then use that with a 1.5 foot disc and dream.... lol..... :D :lol:

Quote:

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Originally posted by muchspl2@6 December 2003 - 18:43
the star wars extended edition

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star wars LDs still are the best versions, 'cause the DVDs don't exist yet. i dunno, maybe george lucas is still working on them, adding scenes of jar-jar binks to the original films so he can release them as super deluxe director's cut special special special editions. :lol:

I figere hes waiting for all movies to release some 200 set, it was cool I bought all three for 12 bucks and there still going for much more on ebay

Quote:

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Originally posted by muchspl2@6 December 2003 - 19:04
I bought all three for 12 bucks

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not bad. ;)

1972?

Glad to see the board is finally catching up with the cutting edge of technology. :unsure:

lol

i never really knew what LDs were. they were before my time ie 90s. i wasnt in to computers then when i was less than 13

yea this was a cool thread, so many young members probably never even see a ld or knew about it


the most expensive ld I ever bought was a Citroen collectors ed of trainspotting
around 35.00 it has out takes but it should be on dvd by now for cheaper :(

I think the best quailty ld I have is toy story, man its the clearest think IIRC it was the first all digatal transfer

I remember LaserDiscs. They were pretty pretty big. But the clarity and shit was comprable to DVD back then. Was just too big for standard everyday use.

BTW how much data can them things hold ??

Are they just like normal cd's just huge or an actual different format ??

the size of a album and most of them fit on two disc (front & back) & some have three disc like jurassic park and some others