QTeXporter uses the script to save your quicktime export settings.

If you want to keep your export settings in order to use them again, then QTeXporter is for you.

First and most important thing: export Quicktime movie with your favorite settings. (this is very important step - in order to save export settings you must set them first!). Then, with Quicktime player open, start this applescript and choose "save export settings" from the list.