Mpeg-1.5??

[shultz]

I was looking around on lyngsat and found on one of the Anik sats (F1R i think) some channels with MPEG-1.5 encoding. What is this and what kind of box decodes this? Just curious, never seen or heard of this one before.

 

[primestar31]

I was looking around on lyngsat and found on one of the Anik sats (F1R i think) some channels with MPEG-1.5 encoding. What is this and what kind of box decodes this? Just curious, never seen or heard of this one before.

That's what Directv uses I believe.

"Broadcasters wanted the enconomy of digital transmission, but because MPEG-1 was not suitable for satellite and MPEG-2 was still being developed, a "bastardized" flavor of MPEG which I call MPEG-1.5 was created. This format is not a official standard, but is still used for satellite (CNN Airport network uses MPEG-1.5). MPEG-1.5 uses a wide bandwidth MPEG-1 flavor of video encoding along with multiplexing of data streams which allows multiple programs to be transmitted across one satellite channel at a time."

North American MPEG-2 Information

 

[voomvoom]

I would guess they were commercial boxes? I remember when WOR (about the time they became WWOR) changed from analog VideocipherII to mpeg 1.5, and we lost the ability to receive it. I don't remember ever seeing a way to get access to one of those receivers? Not too long after that, DigicipherII came out and most people went that route, but I don't think WWOR ever did DigicipherII. Digicipher II was/is an mpeg 2 stream.
I would say it's been around since the early 90's, maybe late 80's..???

 

[shultz]

North American MPEG-2 Information

Thanks guys. I knew i couldn't get it, and didn't know what did. Thats an interesting link! I might learn something