Problem with Lectora files (html zip) audio moving from Bb 8 to Bb 9.1

Hi Everyone! I have a question for anyone out there using Blackboard to post Lectora files (format: HTML- Zip). We have existing material on our Blackboard server that was just upgraded form Bb 8 to Bb 9.1. The issue is that the way the files are stored in 8 and in 9.1 is different. The files play but the audio doesn't work when using Internet Explorer 8 but does work in Firefox and in Google Chrome.

If someone out there has any insight into what may be the problem I would appreciate it. Thanks! --Linda--