What does CAV, CLV, JP6 stand for? (1 Viewer)

[Matt Pelham]

Hi, I'm relatively new to the forum and I enjoy it a lot. Although I consider myself pretty well informed of movie related terms, there are a couple I can't figure out.

CAV and CLV - I know they have something to do with laserdiscs but what exactly do they stand for?

JP6 - I know this translates roughtly to "Everyday Joe who prefers Pan+Scan" but what exactly does it mean?

Lastly what is MARed? I know this means modified from original version (ex open matte or pan+scan) but what is the purpose of "MAR" in caps?

Thanks.

 

[Ricardo C]

J6P = Joe Six-Pack. Meaning, the average unrefined (indicated by the six-pack mention) consumer who doesn't give a flip about OAR, proper equipment calibration, etc.

 

[Rob Lutter]

CAV = Constant Angular Velocity

J6P = Joe Six Pack (average citizen)

...CLV has slipped my mind though :b

 

[Rob Lutter]

MAR = Modified Aspect Ratio (like 'open-matte')

 

[DeanWalsh]

CLV= Constant Linear Velocity

CAV LDs hold about 30mins per side

CLV LDs hold about 60mins per side

 

[Malcolm R]

CAV is also sometimes referred to as "Standard Play," with CLV being "Extended Play."

 

[Matt Pelham]

Thanks, now I can completely enjoy the forum!

 

[alan halvorson]

One thing to note is that a CAV laser disc track consists of up to 54,000 concentric circles while a CLV track is a continuous spiral, just like CDs and DVDs. Each concentric circle on a CAV disc represents a single frame. For those that like to study film sequences and how they develop (particularly animation), CAV is king over all other formats.

I don't want to get to deep into it now, but, in fact, there ain't no such animal as CLV anymore, but the term has become a convention.

 

[tyler O]

So I guess all the discs now are actually CLV.