From Amadis Software:
Amadis Apple TV Video Converter is a video and audio conversion tool for playback on Apple TV. It can convert almost all popular video formats: DivX, XviD, AVI, WMV, MPG, MPEG, ASF, RM, RMVB, MOV, ASX, MKV, OGM, 3GP, M4V, H261, H264, YUV, MJPEG, SVCD, VCD format to MP4(MPEG-4,H.264), WAV, AAC, MP3 for Apple TV. It also supports converting popular audio files, including MP3, WMA, OGG, AAC, M4A, WAV, to audio formats WAV, AAC, MP3 for Apple TV. It can provide batch file convert. At the same time, you can also select the video and audio parameter: framerate, or image size as you like. Version 3.7.5 upgrades the MPEG4 encoder.