DevConverter converts your video files online. Amongst many others, we support MP4, WEBM and AVI. You can use the options to control video resolution, quality and file size.
WMV is a video format which is compressed with Windows Media compression and contains a video encoded with one of Microsoft's Windows Media Video. WMV was originally used for Internet streaming applications, but with WMV9 version it has also gained adoption for HD DVD and Blu-ray Disc.