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 digital video.

WMA is Windows Media Audio. WMA is a new audio format developed by Microsoft well known as MP3. With a higher rate in files compression and better sound quality than the latter, even far beyond those of RA. 

To convert mp4 to wma file, please install the appropriate mp4 decoder and audio decoder for the mp4 format such as FFDSHOW, DivX, XviD etc.

Download WMA Converter which can convert mp4 to wma file. Select an mp4 file, set the start time, the end time or audio encoding bitrate if needed. The bitrate is bigger, the file size is bigger, the audio quality is higher, and vice versa. Click the Convert button to convert mp4 to wma.


HDTV means High Definition Television which provides broader screen and higher definition than VCD or even DVD. HDTV technology having the best audio and video is the highest standard of DTV (Digital Television). The resolution of HDTV could reach as high as 1920 ◊ 1080 while the frame rate could reach to 60 fps. Besides, it adopts digital technology thus signalís anti-noise ability enhances greatly.

Please install HDX4 HDTV or FFDSHOW or other codecs for HDTV to wma.

DVB stands for Digital Video Broadcasting. Itís a series of international recognized open standards for digital TV maintained by DVB Project, an industrial organization formed by over 300 members and launched by Joint Technical Committee formed by European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC) and European Broadcasting Union (EBU). DVB transmission system makes use of all common television broadcasting transmission media including satellite, cable, terrestrial, SMATV, MNDSD, whose DVD Standards are respectively are DVB-S, DVB-C, DVB-T, DVB-SMATV, DVB-MS and DVB-MC.

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