Super huge floppy disk "CRVdisc"

3.5 inches in the right end, 8 inches in the middle, a huge floppy disk that is mysterious on the left end. If it sees closely, it says "CRVdisc", but is this ...? It seems that it is not a floppy disk exactly ....

Details are as follows.
Huge floppy 004 on Flickr - Photo Sharing!

Here are the pictures compared with general floppies.

Huge floppy 003 on Flickr - Photo Sharing!

It seems that there are about 2 GB of capacity on one side, it takes 1 hour to write, or as many as 1,000 dollars at the time of 1978, various opinions are told, but details are clearly understood Is not ...

I tried searching on Google for trying, it seems that it seems to be Sony Corporation's video disc recorder CRVdisc ....

Great, anyhow big.

Image: CRVDisc.jpg - Wikipedia, the free encyclopedia

It seems like a former laser disc .... The equipment to play is korean.

Write-once type video disk player (reproduction only)
LVA-3700

Why was not so much movie recording, the problem of compression codec. It seems that it was a form nearly uncompressed. Thanks to the image quality is no noise, it seems that it was very clear ....

[tell me! Goo] About LD and VCD