[opendtv] Re: A detail in the history of video standards

Which is why ATSC A/53D paragraph 5.7.4 states:

"5.7.4 PID Value Assignments:
PID values used to identify Transport Stream packets carrying 
TS_program_map_section() or program elements shall not be set below 0x0010 
or above 0x1FEF.

"Beginning not later than January 1, 2005, in order to avoid collisions with 
fixed PID values and ranges already established in this and other 
international standards, PID values used to identify Transport Stream 
packets carrying  TS_program_map_section() or program elements shall not be 
set below 0x0030."


----- Original Message ----- 
From: "Rod Hewitt" <rod@xxxxxxxxxxx>

> This I have to comment over. The original SI standard in ATSC was based
> almost 100% on Motorola's Digicipher II system used on satellite. It
> mandated a fixed program to PID relationship (not a bad idea IMHO) and
> as a result, the PMT, video and audio streams for program 1 step right
> on top of the DVB-SI Network, Service Definition and Time tables.
>
> Doesn't sound like they thought about any networks other than DCII to
> me...
>
> Cheers,
> Rod


 
 
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