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AVCHD Create Disc is using the wrong format
Tedster
Newbie Location: Lusk, Ireland Joined: Dec 28, 2010 18:09 Messages: 1 Offline
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Hi All

Am running build 2504, and on my system when the preferences are set to PAL and I go to create disk, select AVCHD the SD option shows as 720 x 480 which is an NTSC dimension. If I go to the produce tab and select h.264 / AVC I can select AVCHD 720 x 576.

I suspect that this is causing problems when trying to produce an AVCHD disk using PAL footage. I am able to create an AVCHD 720 x 576 file no problem and it looks fantastic. Drop that into a new project and create disk and it fails every time also means that the SRVT does not work because its taking the 720 x 576 file and converting it into 720 x 480.

Can you confirm that you are seeing the same? or is it just me, maybe I am missing something.

Thanks
Cap'n Kevin
Senior Contributor Location: Chebeague Island, Maine Joined: Dec 26, 2008 20:22 Messages: 2011 Offline
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Hi Tedster,

Build 2504

I don't use PAL footage.....but...

I did change my preferences to PAL....selected PRODUCE....selected h.264...selected PAL in Country drop down and could see the SD 720x576 option.

When I went to the Create Disc Module and selected AVCHD as disc type....I could only select SD720x480.

So I am seeing what you are seeing. So I can confirm what you are seeing, but it might be helpful to have more input from other people that use PAL as source footage to confirm it as well.

Regards,

KEvin
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James Dotson
Senior Contributor Location: Tennessee Joined: Aug 24, 2009 20:40 Messages: 3066 Offline
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Those formats were just added with the release of PD 9. It is possible that SVRT is just not working correctly. There seems to be more issues with the 64-bit version of PD than the 32-bit, but AVCHD has been having more than it's fair share of problems.

From reading the specifications it appears that the 480/576 resolution is the only one where PAL differs from NTSC. __________________________________
CORNBLOSSOM
pjc3
Senior Member Location: Australia Joined: May 29, 2010 19:33 Messages: 247 Offline
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This thread grabbed my attention as I have burnt some PAL AVCHD discs in SD. It is as described not having a PAL option but the actual burning is in PAL format and the 00000.m2ts file in the stream folder is actually PAL format 720x576 so all is well.

edit : SVRT works but new encoding works as well.

This message was edited 2 times. Last update was at Jan 09. 2011 18:37

Panasonic SD9, Panasonic TM700, Panasonic SD600, GoPro HD Hero.
James Dotson
Senior Contributor Location: Tennessee Joined: Aug 24, 2009 20:40 Messages: 3066 Offline
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So, you select 720x480 but it does burn at 720x576? __________________________________
CORNBLOSSOM
pjc3
Senior Member Location: Australia Joined: May 29, 2010 19:33 Messages: 247 Offline
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Quote: So, you select 720x480 but it does burn at 720x576?

Correct. As long as PAL is selected in preferences. Panasonic SD9, Panasonic TM700, Panasonic SD600, GoPro HD Hero.
Cap'n Kevin
Senior Contributor Location: Chebeague Island, Maine Joined: Dec 26, 2008 20:22 Messages: 2011 Offline
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Sounds like it should be corrected to reflect the actual resolution that is going to be produced.
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Dafydd B [Avatar]
Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline
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Minor Bug,
Good spot.
My ref 160

Dafydd
AlanH [Avatar]
Newbie Location: Australia Joined: Dec 30, 2010 02:55 Messages: 2 Offline
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720 x 480i/29.94
NTSC is a method of combining a pair of colouring signals and a luminance signal into one composite signal. Only used in analog TV. DVDs and Blu-ray discs do not record colour in this way. The disc recordings keep luminance and the pair of colouring signals all separate from each one.
Digital TV and discs have SD signals of 720 pixel/line x 480 lines interlaced at a frame rate of 29.97 frame/s. A disc will contain 25 % more program duration if it is recorded at 23.97 frame/s. Either MPEG-2 or the more efficient MPEG-4 compression can be used.
This system is used in the Americas and parts of Asia.

720 x 576i/25
PAL is a better method of combining a pair of colouring signals and a luminance signal into one composite signal. Only used in analog TV. DVDs and Blu-ray discs do not record colour in this way. The disc recordings keep luminance and the pair of colouring signals all separate from each one.
Digital TV and discs have SD signals of 720 pixel/line x 576 lines interlaced at a frame rate of 25.0 frame/s. A disc will contain 4 % more program duration if it is recorded at 24 frame/s. Either MPEG-2 or the more efficient MPEG-4 compression can be used. It is used everywhere else.

I tried to burn a signal from an 720x576i/25 mpeg2.ts file using the burner program, but as quoted above it is not available using MPEG-4. As an option I tried using the Produce program. This should have reduced the file size by 30 - 50 % this is not what happened. The file size was unchanged. I only wanted to change the compression from MPEG-2 to MPEG-4 and produce a .mp4 file on a DVD.

Any comments on the last paragraph?

AlanH
Dafydd B [Avatar]
Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline
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AlanH,
Comment.
Post as a new subject and provide the 3 basics along with your question.
Post locked.
Dafydd
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