The folks at ATi / AMD let us know that there is a profile within the Avivo Video Converter which supports video output to the Zune, without the need for transcoding and can cut up to 80% off the conversion time. There is a handy knowledge base article that will walk you through the process of converting your videos into the Portable Media Center format, which is supported by the Zune. ATi / AMD also told us that newly converted videos stored in your ‘My Videos’ folder are automatically synced to your Zune. More information on adding files to your Zune library can be found on the official Zune website.