I need to be able to convert files to RealVideo, and I've downloaded the free RealMedia 10 export plugin for OS X from the Real website. Unfortunately, whenever I try and I export a file as RealVideo, the export always gets to 100% but then says "Failed". The encoded file exists and is playable in RealPlayer, but while the video is always fine, there's never any audio. If I use my Windows laptop to encode the same source file using the free RealProducer, it always works perfectly. Any suggestions? It's a serious pain having to transfer files to the Windows machine in order to encode to RealVideo.