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Activity Forums Compression Techniques output with .mpg extension?

  • output with .mpg extension?

    Posted by Ilya Osovets on March 24, 2011 at 10:48 pm

    Hey everyone,

    I need to output a 1280 720 23.98 project to these specs

    Video: Mpeg2, 4:2:2, 720 x 486 (recommended) or 720x 480 18 Mbs, 9 frame GOP (Recommended) 29.97 fps. interlaced Video lower field first.
    Audio: embedded Mpeg1 layer 2 48Khz 16bit 384 Kbps,
    Spot MUST have an .mpg file extension.

    I tried somethings in compressor and I can’t get it to output with a .mpg extension always goes to .m2v.

    Any thoughts?

    Thanks!

    Craig Seeman replied 15 years, 4 months ago 2 Members · 3 Replies
  • 3 Replies
  • Craig Seeman

    March 24, 2011 at 11:25 pm

    You’re encoding to m2v is because you’re encoding for DVD use.
    Duplicate one of those settings.
    Or Duplicate Apple>Formats>MPEG2>Program Stream
    Under Encoder where it says Stream usage change it from SD DVD to Generic (if you started from a DVD setting).
    That would change the extension to mpeg (not mpg though)
    in the Extras tab make sure Multiplexed MPEG-1/Layer 2 Audio is checked.
    Make sure the Program stream button is selected beneath that.
    I’d probably recommend GOP structure IBBP Closed GOP Size 15. You won’t be able to select 9 frame GOP structure.
    Video Format NTSC Frame Rate 29.97 Bottom First.
    I’m probably skipping a few things as you need to make sure you’re adding pull down to go from 23.98 to 29.97 and aspect ratio you’d probably want letter boxed.

    Telestream Episode is a much better encoder for this type of job and you’ll get mpg extension on Program Stream as well.

  • Ilya Osovets

    March 29, 2011 at 2:49 pm

    Craig,

    Thanks for all your help. Your notes have been dead on. Luckily for me the deliverable changed and I was able to deliver at 23.98.

    Thanks!

  • Craig Seeman

    March 29, 2011 at 3:37 pm

    [Ilya Osovets] “Luckily for me the deliverable changed and I was able to deliver at 23.98. “

    Short of doing it for broadcast TV, many playback devices will handle 23.98 natively or add the pull down on the fly.

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