[opendtv] Re: 70th Anniversary Blu-ray and standard DVDs of the Wizard of Oz

  • From: Tom Barry <trbarry@xxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Thu, 01 Oct 2009 12:31:49 -0400

My first Toshiba HD RPTV was a 1080i only 4:3 RPTV.   It expected the
Tosh STB to be able to letter box content and had no ability to do it
itself.   I eventually went into service mode and compacted it
vertically to always be about a 14:9 ration since I did not have that
STB and my PCHD cards at the time could not perform this function.   And
even the later PCHD  cards never did it very well.

So maybe HDTV's were not supposed to be 4:3 but many early ones
existed.    And at the time (9-10 years ago) they were a much better
bang for the buck if you just measured viewing square inches / dollar.  

Didn't Phillips also make some of these?

- Tom


Stessen, Jeroen wrote:
> Hello,
>
> Cliff Benham:
>   
>> Bert, it is only a 4:3 monitor, so it doesn't have a switch to change 
>> between 4:3 and 16:9.
>>     
>
> I'm with Bert on this one.
> If I understand correctly, you have connected a 4:3 (computer) monitor
> to the HDTV output of a BluRay player ? But this is wrong, an HDTV
> display is implicitly 16:9 (or 21:9). There are no 4:3 HDTV formats in
> the ATSC table 3, therefore there are no such signals or displays.
> You can not blame a BluRay player for sending the "wrong" signal to a
> display that is not supposed to exist.
>
> A 4:3 movie is always pillarboxed to a 16:9 signal for display on a 16:9
> display. There exists no output mode that is compatible with 4:3 displays.
> You should not connect 4:3 computer monitors to HDTV signals, just because
> they can handle the line and frame rates. It is an undefined use case.
>
> Groeten,
> -- Jeroen
>
>   Jeroen H. Stessen
>   Specialist Picture Quality
>
>   Philips Consumer Lifestyle
>   Advanced Technology  (Eindhoven)
>   High Tech Campus 37 - room 8.042
>   5656 AE Eindhoven - Nederland
>
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