What QC is exporting is still a QC composition but inside a QT file wrapper. The QT wrapper lets you set a playtime length, which can be useful if you are playing a QC composition in Keynote.app for example. If you place a .qtz file on a slide in keynote it will only play for 30 seconds. If you export as a quicktime movie set to 10 minutes, it will play for ten minutes.

So the exported file is not a QT reference movie in any sense, it is still executable code being exported, hence the small size (for a movie).

What other systems may lack is a plugin or patch that your composition is dependant on, otherwise .qtz files wrapped as .mov files should play on any system — 10.5, 10.6, 10.7 specific dependencies not withstanding.

If you post a comp someone here can see if any plugin/virtual patches are required on the host system from the console/QC log window.

On 02/03/2012, at 4:59 PM, Nathan Sims wrote:

Noob question about Quartz Composer V4.0. When I click on "Export as QuickTime Move...", QC exports the composition as a tiny 8k mov file. It plays, but only on my system, like a 'reference' movie, where it doesn't actually contain movie data within it. How can I get QC to generate a movie that contains its data and will play anywhere? QuickTime Player won't re-export the file or save it as anything else (all the menu items for that are dimmed out).



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