G
Geoffrey S. Mendelson
Guest
Arfa Daily wrote:
MPEG-2 is a hard and fast standard, having been finalized for DVD players.
MPEG-4 does not enjoy such standardization, there are at least 3 variations.
The most commonly used one is the "divx" standard, which is rarely used.
Most divx content is really produced with one of the free "compatible"
programs, and played with other free compatible programs. The program
which creates the file is set to use the divx identifier, so programs
playing them think they are real divx files which they are not.
Then there are the H.264 files which are still "MPEG-4" but different.
Microsoft has their own MPEG-4 standard, which is not 100% compatible with
the others, but since it is patented by them and requires a license fee,
you can expect that the only thing that will reliably play it will be Windows
Media Player and the X-Box line.
From what I have infered from reading Tele-Satellite Magazine, most if not
all of the satellite receivers use the free decoding engine and not the
licensed one. It works very well at higher bit rates, but H.264 works
better at the lower ones. It's not as much a problem as you would think,
the free decoder programs will decode both.
As for satellite TV, the usual way of doing things has become an implementation
(sometimes off the shelf) of the free decoders and hardware decoding using
one of the open standard card interfaces.
Here, it is unfortunate because less than honest dealers sell receivers
that "do not require you to pay the high cost of pay TV", they include the
decrypting software in the receiver and then download new keys over the
Internet.
The dealers must hate me because I get asked about them on the average of
once a week, and I explain that they are buying a system dependent upon
piracy.
One person I met spent several thousand dollars on such a system, and while
I've never met him, when a mutal friend told me about it, I explained
exactly what was happening and why. I don't know what he did, but from what
my friend said, his friend would probably have not have bought it.
Geoff.
--
Geoffrey S. Mendelson, Jerusalem, Israel gsm@mendelson.com N3OWJ/4X1GM
So when the
manufacturers designed-in mpeg-2 decoders in the honest belief that the
future terrestrial HD services would employ this compression scheme, and
then called their sets "HD Ready", they weren't lying or trying to mislead.
MPEG-2 is a hard and fast standard, having been finalized for DVD players.
MPEG-4 does not enjoy such standardization, there are at least 3 variations.
The most commonly used one is the "divx" standard, which is rarely used.
Most divx content is really produced with one of the free "compatible"
programs, and played with other free compatible programs. The program
which creates the file is set to use the divx identifier, so programs
playing them think they are real divx files which they are not.
Then there are the H.264 files which are still "MPEG-4" but different.
Microsoft has their own MPEG-4 standard, which is not 100% compatible with
the others, but since it is patented by them and requires a license fee,
you can expect that the only thing that will reliably play it will be Windows
Media Player and the X-Box line.
From what I have infered from reading Tele-Satellite Magazine, most if not
all of the satellite receivers use the free decoding engine and not the
licensed one. It works very well at higher bit rates, but H.264 works
better at the lower ones. It's not as much a problem as you would think,
the free decoder programs will decode both.
As for satellite TV, the usual way of doing things has become an implementation
(sometimes off the shelf) of the free decoders and hardware decoding using
one of the open standard card interfaces.
Here, it is unfortunate because less than honest dealers sell receivers
that "do not require you to pay the high cost of pay TV", they include the
decrypting software in the receiver and then download new keys over the
Internet.
The dealers must hate me because I get asked about them on the average of
once a week, and I explain that they are buying a system dependent upon
piracy.
One person I met spent several thousand dollars on such a system, and while
I've never met him, when a mutal friend told me about it, I explained
exactly what was happening and why. I don't know what he did, but from what
my friend said, his friend would probably have not have bought it.
Geoff.
--
Geoffrey S. Mendelson, Jerusalem, Israel gsm@mendelson.com N3OWJ/4X1GM