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Re-compressing MPEG2 files
Hi,
Every now and then I have to take an existing MPEG2 file and re-use it. This often requires having to re-compress the file from a very high bit rate down to a lower one, due to my client wanting to only produce a DVD5 rather than a DVD9.
Compressor does a pretty good job (once its going) of this but my issue is…
…Why does Compressor, and in fact Quicktime, take such a long time to even read the original MPEG2 file? If I drag and drop it into Compressor its takes at least 15mins and much beachballing before it even acknowledges the file! Then does the same again when I drop a setting onto it.I think Quicktime is trying to parse the whole file, or something like that and im wondering if anyone else out there has experienced the same problem and maybe found a way around?
Thanks,
Tom. -
1 Reply
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Hi Tom,
QT had never been very fond of MPEG-2. Few years ago you just clicked a MPEG-2 file and the ball could spin for few minutes, but in a certain time things have changed. When I click an MPEG-2 now, the ball can spin for few seconds but that is all.
If you say that it takes so long to open an MPEG-2 in QT in your system, this may be not in his best shape.
The truth is that I’ve never tried to open an MPEG-2 with Compressor. Compressor is designed to ingest with QT movies (.mov) not .mpg’s. Most of the people when need to re-edit an mpeg-2, first they transcode it with MPGStreamclip to a .mov that can easily cut in FC.
Perhaps “Episode’ is better suited to do this task. Ask Craig Seaman (Compression Forum) he works with high data-rate MPEG-2 and probably hi will be able to advise you better than my self.
Cheers,
Rafael
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