On Mar 3, 2011, at 12:12 AM, Deepa wrote:

> I am developing an Desktop application which organizes and plays movie files. 
> So, I have added the mp4, mov, avi, m4v (mp4, mov, avi, m4v extensions) as 
> document type under Properties of my application target.
> The problem is that when the user installs my app in Applications folder of 
> his system, the default option for opening the mp4 movie file changes to 
> Voila from QuickTime Player automatically. The default option is nothing but 
> the 'Open With' option provided in the Info window of a file. This happens 
> for most of the users. Why is this happening? How do I solve this?

Here's what I wrote in another similar thread recently: 
http://markmail.org/message/kf7lxgpu52nn34k2

Cheers,
Ken

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