2 Replies
Graham North

Initially I would suggest updating the file format to the current .pptx rather than the older .ppt (File Save as).  If that doesn't work then you may need to visit each slide (in the newly saved .pptx) and update the recorded audio by right clicking the audio icon and selecting Update Media Object. This would reduce any issues the import may have whilst attempting to Import the older file formats.  The process may also highlight any issues within the PowerPoint file itself.