Quantcast DVD Compliant MPEG-1 ? - digitalFAQ.com Forums [Archives]
  #1  
02-23-2004, 11:37 PM
ozjeff99 ozjeff99 is offline
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I understand that the KVCDs we create are not strictly compliant with the DVD standard (res, bit rate, GOP etc.).

Is there a standard template that could be used that provides DVD compliant Mpeg-1 files for authoring?

Thx
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  #2  
02-24-2004, 12:24 AM
kwag kwag is offline
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DVD standard supports MPEG-1, only at 352x240(28
You can use all KVCD encoding techniques, and just change the audio to 48Khz, because that's needed for DVD compliancy.
And keep the GOP at a MAX of 18 (NTSC) or 15 (PAL).
That's just about it

-kwag
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  #3  
02-24-2004, 02:40 AM
Lagoon Lagoon is offline
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Since maestro didnt complain (not even a warning) of MPEG-1 at all the MPEG-2 resolutions (352x240/288 - 352x480/576 - 704/720x480/576) I think all players are able to play them, or at least 99%.

Maestro is usually really strict on standard, it won't even compile non-standard GOP lenght.
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02-24-2004, 03:34 AM
ozjeff99 ozjeff99 is offline
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Thanks guys.
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02-24-2004, 04:20 AM
Dialhot Dialhot is offline
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Quote:
Originally Posted by Lagoon
I think all players are able to play them, or at least 99%.
Thinking does not make a standard. And the standard is what Kwag mentioned.

http://www.dvddemystified.com/dvdfaq.html#3.4
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  #6  
02-24-2004, 11:09 AM
Lagoon Lagoon is offline
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I never said it was a standard.
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  #7  
02-24-2004, 11:16 AM
Dialhot Dialhot is offline
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Quote:
Originally Posted by Lagoon
I never said it was a standard.
That wasn't so obvious in what you said :
Quote:
Since maestro didnt complain (not even a warning) of MPEG-1 [...] Maestro is usually really strict on standard

That's why I did the precision.
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  #8  
02-24-2004, 11:27 AM
Lagoon Lagoon is offline
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I wanted to say that even if it is not in the standard if maestro accepts it without warnings, it should be played on 99% of them
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  #9  
02-24-2004, 11:38 AM
Dialhot Dialhot is offline
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BTW, did someone heard about standalone that don't play KDVD with long GOP ? I tested on three different brands (Philips, Thomson and Pioneer), all worked correcly.

Thats seems to be also a "non standard compliant feature that 99% of the players accept"
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  #10  
02-24-2004, 11:58 AM
Lagoon Lagoon is offline
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SO far everything I tried worked fine on my standalone (Pioneer DV444) except for 480x288, which didnt, it only filled 1/3 of the screen.

Didnt surprise me that such a weird resolution didnt work though
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  #11  
02-24-2004, 12:28 PM
Dialhot Dialhot is offline
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Quote:
Originally Posted by Lagoon
Pioneer DV444
I have a 454 and the only thing strange with it is that if I use Nero to make a KVCD, it plays at slow motion.

The same KVCD done with VCDEasy (even if I use Nero to burn the image) is okay !

I have also problems with 23.976 MPEG1 muxed as SVCD : there is purple square about 3cm by 3 flashing in the bottom right corner. But 23.976 is supposed to not be a correct framerate, so that is not a important.
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  #12  
02-25-2004, 12:06 AM
kenguard kenguard is offline
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Quote:
DVD standard supports MPEG-1, only at 352x240(28
You can use all KVCD encoding techniques, and just change the audio to 48Khz, because that's needed for DVD compliancy.
And keep the GOP at a MAX of 18 (NTSC) or 15 (PAL).
That's just about it
Kwag

Is the framerate of 23.976 a part of the DVD MPEG-1 support or does it need to be 29.97
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  #13  
02-25-2004, 12:15 AM
kwag kwag is offline
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Quote:
Originally Posted by kenguard

Kwag

Is the framerate of 23.976 a part of the DVD MPEG-1 support or does it need to be 29.97
Sadly, no
It must be 29.97fps.
So you might want to consider encoding 352x240 MPEG-2 at 23.976, with 3:2 pulldown.
That will give you better quality and space than MPEG-1 at 29.97fps.
Sorry I didn't point that out before

-kwag
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