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Re: Unknown file type

An uncompressed QuickTime file does NOT add artifacts. Also, video and audio must
always be in separate streams to be imported into DVD Sp, or any other DVD
authoring program. MPEG-1 files are not necessarily multiplexed. They can be
elementary streams.

If you have multiplexed MPEG 1 or 2, You must De-Mux them before they can be used
in authoring. There are other issues such as max data rates, and GOP structure that
must also be taken into consideration.

Not every MPEG file you can stream or play on a computer can be used in a DVD,
without re-encoding.

JD




dovecom wrote:

> Frederick Banistman said:
>
> > Hey guys i havent gotten any response regarding these questions. Can anyone
> > give me a hand
> > with this stuff? Ive got a couple more additional questions now too. Ive got
> > some mpeg1 clips that
> > i can open and play with Quicktime Player, yet when i open them in Final Cut
> > Pro 2.0 i end up with
> > garbled video. Is there any reason for this? What i would like to do idealy
> > is decompress them
> > into AVI files which i can then export into MPEG2 and use in DSP. Does this
> > make any sense? And
> > nobody has responded regarding the use of VOB files in DSP... is this possible
> > or not? Is there any
> > possibilities that these files do not contain vital information that a Mac
> > requires as they were created
> > originally on a pc, i would have thought that mpeg is mpeg and it wouldnt
> > matter where they originated.
>
> You want to take compressed mpegs, add codec artifacts converting to QT,
> then recompress to Mpeg-2 (and scale them as well?)
>
> Why?
>
> MPeg-1 files are multiplexed. You need to export the video from QT pro, and
> grab the audio using a third party utility the name of which I can't
> remember. Then recombine with QT player pro. Then export to Mpeg-2.
>
> Basically, it's going to look like crap.
> _______________________________________________
> dvdlist mailing list
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> http://www.lists.apple.com/mailman/listinfo/dvdlist

References: 
 >Re: Unknown file type (From: dovecom <email@hidden>)



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