Compressor renders to a 4 kb file only?

Hi all. I am rendering a file with my unchanged vimeo codec. But the last few times I have rendered like this Compressor takes the time to render the file then says it was successful but when I look at the file it is only 4 kb. Can anyone help?

MacBookPro, 4GBRam

Posted on Mar 26, 2011 3:11 AM

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9 replies

Mar 26, 2011 11:56 AM in response to Will Power PT

A 4kb file is typically just the icon placed by the Finder (system) while the file is being processed.
Once the compression is completed, refresh the window (I typically switch from list view to column view and then back) and the file size is updated.

If this is the cause of your situation you could also highlight the file and Get Info (Cmnd-I) and it will show you the new file size and update the window. You can also check file size while in QuickTime by Cmnd-I.

Jun 26, 2011 11:25 PM in response to Will Power PT

I've had the same problem before, too. It may have to do with your render settings in Compressor, as well as the amount of ram you have available for the process (4GB may be too low). Usually it takes a while for it to convert, so I'd say leave it alone for at least 5-10 minutes. If nothing else, try using MPEG Streamclip-- it's faster.

Jun 27, 2011 7:23 AM in response to Will Power PT

Check the History window, it will tell you if the file is still being transcoded or if it's done... it may be getting stuck. (this may happen if you cancel in the middle transcoding or if you import a reference movie)


Go to: Compressor > Reset Background Processing.


If this doesn't clear the issue, how are you sending the file to Compressor? Share? or are you exporting a self-contained or reference movie from FCP?


(what will also give you a clue that your movie is done, is that if you are exporting to the same location as the source, a yellow exclamation mark will appear next to the applied settings in the main job window)

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Compressor renders to a 4 kb file only?

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