Thank you for the suggestions.
If we set to not compress the audio files it copies them as mp3 which is not what we want, due to our clients network configuration.
When using the Resource Manager to convert the audio to flv, every file I have tried to convert hangs Lectora and we have to force an end application.
These computers do have the Adobe CS4 suite installed on them including Flash, however I don't think that would be interferring. I even disabled virus checking to see if it was interferring. It is odd, that sometimes it will complete one audio before hanging other times it won't.
Any other suggestions?
