What is Multiplexing and What is authoring in VCD Making

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What is Multiplexing and what is authoring? Is this really a requirement for your VCD Making to be a truly compliant VCD and can be playable in PC and any s/a players? What are the best recommended s/w for multiplexing and also for authoring. Thanks in advance.

-- Mel Torres (ojotek@hotmail.com), June 04, 2003


Multiplexing is the action of merging the compressed video stream with the compressed audio stream into a MPEG file. This step is not necessary if you only have a single audio stream for your video. It's necessary when you want to have more than one audio stream. For example, you want the left audio channel for English and the right one for French, you need to create this kind of audio stream using some audio software (such as Goldwave), then mux it with the compressed video. Authoring is the process of taking the MPEG file and make a VCD structure, it is a MUST. TMPGEnc is a freeware that can encode to MPEG, multiplex/demultiplex. Nero is a software that can author/burn VCD from a MPEG-1 file.

-- ktnwin (ktnwin@excite.com), June 04, 2003.

Cheers,mate! To make it more clearer is this authoring that Nero is doing is the process of putting files like cd-i, segment,karaoke,mpegav,etc. Is that all for authoring? Thanks again!

-- Mel Torres (ojotek@hotmail.com), June 04, 2003.

Multiplexing is merging audio and video streams into a single file. You do not normally need to multiplex VCD. That's more important for DVD and SVCD where you might need to process audio or video separately and then combine everything back together. Authoring is whatever program you use to create a VCD image. Nero is a burning/authoring program. VCDeasy (http://www.vcdeasy.org) is another.

Recommendations? Well, TMPGenc (http://www.tmpgenc.net) is fairly good for multiplexing. MPEG2VCR, which is a MPEG-1/2 video editor, is another. MPEG2VCR is at http://www.womble.com. Nero is pretty good, but as I have stated before, Nero does not make truly compliant VCDs or SVCDs. It comes real close and most of the time that's enough, but if you do something like make a photo VCD slideshow, some players demand total 100% compliance to the standards before they'll play these discs and Nero is not good enough for that. You have to turn to VCDeasy if compliance is your main worry.

-- Root (root@yahoo.moc), June 05, 2003.

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