MP4 was firstly specified as an
audio format with little relation with MPEG-4, and just like
the relationship between MP3 and MPEG-3. But now it tends to
be a video format and equals to MPEG-4 Part 14 with the
extension of *.mp4. It mainly stores digital audio and
synchronize/sync mp4 file, please install the
appropriate mp4 decoder and audio decoder for the mp4 format
FFDSHOW, DivX, XviD etc.
Audio Video Synchronizer which can synchronize
audio/video of an mp4 file. Click the Options button, select
Output Format with WMV.
If you want to get mp4 file,
please install third party mp4 muxer. Select Output Format
with Custom video muxer. Set Custom video muxer as mp4
multiplexer. The you may get mp4 file.
ASX is Advanced Stream
Redirector. ASX is XML metafile designed to store a list of
Windows Media files for streaming video. It supports RTSP,
MMS, HTTP protocols. WVX is Windows Media Video Redirector.