It seems that drupal has limitations on the types of flash that are allowable to be uploaded. I'm currently using Webex for webinars and they seem to have a proprietary flash (ARF) that I can't upload. I CAN use wmv, (which I have done for gotomeeting) but then it takes 15 min to upload an hour webinar. We've tried re-recording in camtasia, but its extremely poor audio quality. Is there any way to add ARF as an upload option for flash? Other suggestions? Most webinars have a webcam (moving parts) and I believe are 100-150mb.