The only weird thing is that the video frame rate is mysteriously doubled from e.g. LW imports both video and all 6 surround sound audio tracks at the same time from the mp4 file. The resulting file plays in VLC with both picture and sound OK. The video is re-wrapped (not transcoded) but the ac-3 surround sound 5.1 audio is transcoded to aac. To load the preset in MediaCoder go to File > Load presetĮxplanation: the latest versions of MediaCoder are experimental betas and the 32 bit version does not work at the time of writing so use the older V.0. 32 bit version. of MediaCoder (it will be eventually archived at ) and load drkuli's preset. People with 32 bit systems download 32bit V.0. To load the preset in MediaCoder go to File > Load preset People with 64 bit systems should download and install the 64bit version of MediaCoder and load shaunthesheep's preset. Our experience has been that while this method generally works with the 64 bit version of Miediacoder it has frequently failed with the 32 bit version because different versions of FFMPEG and MEncoder are installed. Different versions of the back-ends are used in the 32 bit and 64 bit versions of Mediacoder. The problem with Mediacoder is that it is a GUI/front-end for a variety of back-end engines like FFMPEG and MEncoder etc. I attempt to list pros/cons at beginning of section Method 1 - MediaCoder Lightworks can transcode AVCHD QuickTime files on import to MPEG I-frame HD which solves playback problems. Lightworks Beta currently has some long GOP performance problems but improved handling is on the Lightworks roadmap. Smooth playback in Lightworks of AVCHD files depends on CPU. MTS files need to be re-wrapped to mp4 or transcoded to MPEG I-frame HD in an AVI container (there is little quality loss). Lightworks currently supports AVCHD natively in QuickTime containers only (mov, mp4) not MTS containers.
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