Mailinglist Archive: opensuse (3100 mails)
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Re: [SLE] DVD Playback - Region Encoding
- From: James Knott <james.knott@xxxxxxxxxx>
- Date: Sat, 18 Mar 2006 16:02:26 -0500
- Message-id: <441C7562.1080104@xxxxxxxxxx>
Alan Dowley wrote:
>
>> In both NTSC and PAL &SECAM. The number refers to the total number of
>> horizontal lines per frame, including the superblack sync bar. For
>> NTSC, that number is 525 and it's 625 for PAL & SECAM. NTSC has had 525
>> lines, since before WW2. These numbers predate personal computers by
>> many years. Also, NTSC is 60 fields/second or 30 frams/sec. PAL &
>> SECAM are 50 fields and 25 frames.
>>
> So when is the US going to catch up with European technology. We moved
> from 405 to 625 many years ago.
>
The analog system is supposed to be gone in a few years. Also, that 525
line system dates back to ~1940, with colour added in the mid '50s. The
625 lines systems didn't come in until the '60s and could take advantage
of the lessons learned with NTSC.
>
>> In both NTSC and PAL &SECAM. The number refers to the total number of
>> horizontal lines per frame, including the superblack sync bar. For
>> NTSC, that number is 525 and it's 625 for PAL & SECAM. NTSC has had 525
>> lines, since before WW2. These numbers predate personal computers by
>> many years. Also, NTSC is 60 fields/second or 30 frams/sec. PAL &
>> SECAM are 50 fields and 25 frames.
>>
> So when is the US going to catch up with European technology. We moved
> from 405 to 625 many years ago.
>
The analog system is supposed to be gone in a few years. Also, that 525
line system dates back to ~1940, with colour added in the mid '50s. The
625 lines systems didn't come in until the '60s and could take advantage
of the lessons learned with NTSC.
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