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Create Subtitles with VideoStudio 11+ for use in MovieFactory 6+ that can be turned on/off with your DVD Remote Control.

Here is a short video tutorial showing how subtitles can be created with VideoStudio 11+ and then placed into DVD MovieFactory 6+ so that they can be turned on or off with a DVD remote control.

http://www.veoh.com/videos/v997767gG54N42z

I use VideoStudio Pro X2 and would like to add switchable subtitles. Would I need to buy MovieFactory? Does it still exist for UK customers? Is there any cheaper option? Do later versions of VideoStudio incorporate switchable subtitles?
Thanks all