Why do I have to repeatedly install Pro Video Formats 2.0.1

Question

On April 21 the App Store notified me of the update to Pro Video Formats 2.0.1.  At least twice every day since then, I've received an update notice for what appears to be exactly the same update, even though I keep installing it after each notification.  My "Updates Installed in the Last 30 Days" list currently is showing 12 instances of the installation of the same thing with the same name, version number, and description.  What is the problem?
Am running Mavericks 10.9.5 on a 15" Retina Macbook if that matters

Answer 1

Finally we have the SOLUTION, and it is Official by Apple. I read it in another thread, Pro Video Formats 2.0.1 Repeat Installation, but it was missing some very important information. Here there are the correct steps;
1. Be sure all applications are closed, since you are going to restart twice.
1. Copy the Folder Macintosh HD/Library/QuickTime to another HD or Desktop, if you use the Desktop, rename it to QuickTimebk or something you wish.
2. Trash all the files contained in original folder Macintosh HD/Library/QuickTime/
3. Open App Store and Install the Software Update Pro Video Formats 2.0.1
4. Close all windows and App Store and Restart your computer.
5. open the original Folder Macintosh HD/Library/QuickTime, you will find all the files installed by the update Pro Video Formats 2.0.1
6. from the QuickTimebk (backup on desktop or else) folder, copy/paste or drag into the original QuickTime folder, all missing files you were using,
like perian.component, Flip4Mac, LiveType, DVCPROHDMuxer DVCPROHDVideo, etc. While doing this, be careful do not overwrite any file, check names.
7. Close all windows, and Restart computer again.
8. Open App Store again and enjoy not seeing the update request for Pro Video Formats 2.0.1. Use your computer as usual.
See you in the next issue.