Hi Minsky!
When attaching sounds to Microsoft PowerPoint files, there are a few things to consider:
- PowerPoint embeds only WAV files with a maximum file size of 100KB. Beyond this, your file will be
linked, which means that when you export your powerpoint or open it somewhere else, the audio files won't be there.
- PowerPoint doesn't accept MP3 files by default.
Perhaps it is one of the two which may be causing your problem.
To learn more about embedding Sounds to PowerPoint presentations, please see this handy tutorial I found on the web:
http://www.create.cett.msstate.edu/create/howto/ppt_sounds.pdf