1)   Daniusoft Digital Video to ZEN Converter 2.0.26
Daniusoft Digital Video to ZEN Converter is a powerful yet easy-to-use application that can convert video to ZEN compatible video and audio formats. It totally supports popular ZEN formats such as avi, mpg, mp3, wma.

 2)   Aimersoft ZEN Media Converter 1.0.1.17
Professional DRM converter and universial media converter, convert DRM-protected and non-protected audio & video files into common formats including WMA, WAV, WMV, M4A, M4P, M4V, AAC, M4B, Zen AVI,WMV,MPEG, etc. Very easy-to-use.