by Clifton » Mon Feb 16, 2015 10:59 pm
You might try a couple of pages where you convert you wav files to mp3 and then use pgSoundLoader() for the on question answered event of the question group. One thing that may be happening is that the Windows Media player is trying to initialize as an activeX control (which is no longer supported in IE11 standards mode) and in other browsers the plugin does not work reliably unless the client computer has it installed. Better to go with HTML5 controls which essentially involves using pgSoundLoader() to play your audio. Should speed up your export too.
NOTE:
When you remove the window media players from a book, you have to remove the extension as well.
See File menu > Extensions ...
Of course, these are just ideas, not necessarily absolute solutions to the problem.