The Mediabook is using Flash player which has been disabled by Adobe on 1/13/2021.

This is why you cannot create Mediabooks or play existing ones anymore.

There is a workaround :

 

  1. Download Flashplayer_32_sa.exe
  2. Rename your .dpa file extension to .zip
  3. Unzip the content  -> it will create a folder containing all assets (including the .swf files)
  4. Double click on Flashplayer_32_sa.exe to launch it.
  5. Click on File > Open > browse to the location where you unzipped your Mediabook and look for the Performance Analysis.swf file
  6. The Mediabook will load.