VisualHub is an application that converts wmv to DVD disc image. Also converts to and from most other video formats. VisualHub has the capability to burn your DVD after converting your files, but I haven't had good luck with that. I use Toast for DVD burning. On the other hand, Toast has the capability to convert some video format to DVD, but I've not had good luck with that either. I'm sure you'll be very happy with VisualHub where converting files is concerned. Not free, though and neither is Toast.