This is a step by step guide show you how to convert .wmv to .mp4 on Mac OS X.

1. What's WMV and MP4

Windows Media Video (WMV) is a compressed video file format for several proprietary codecs developed by Microsoft.
WMV is also a container format. A WMV file is in most circumstances encapsulated in the Advanced Systems Format (ASF) container format. The file extension .WMV typically describes ASF files that use Windows Media Video codecs.
MP4 refers to MPEG-4 Part 14 or *.mp4, is a file format (also called container) specified as a part of the ISO/IEC MPEG-4 international standard.It is used to store media types defined by the ISO/IEC Moving Picture Experts Group, and can be used to store other media types as well. Generally speaking,MP4 is most commonly used to store digital audio and digital video streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images.

2. Free WMV Player for Mac
Software that can play WMV files include Windows Media Player, GOM Player, ALLPlayer, The KMPlayer, PowerDVD, RealPlayer, MPlayer, VLC Media Player, Zoom Player and Media Player Classic.
For Mac users, the MPlayer OSX and VLC Media Player are the best players to play WMV on Mac.

3.how to convert wmv to mp4 on mac?
Free Download WMV to MP4 Converter for Mac: .
Intel Version
PowerPC Version

Supported Apple OS: MAC OS X 10.4, Mac OS X 10.5 Leopard, Mac OS X 10.5.7, Mac OS X 10.5.8, Mac OS X 10.6 Snow Leopard,Unibody Macbook, Mac Pro, Mac Mini, MacBook, MacBook Pro, MacBook Air, iMac and PC with Mac OS X.
To install it, simply mount the .dmg archive by double-clicking it, and copy the application to your applications folder.

Step 1, Add WMV video files to Mac WMV to MP4 Converter
Click the "Add Files" button to add WMV video files to the wmv to mp4 mac converter.This WMV video converter for Mac supports drag-drop and batch conversion, so you can import and convert several multimedia files at a time.

Step 2, Select output format as MP4
Use the “format” on the bottom of the window to control the output format.Click on the toggle to the right of the "Format" label to get format drop-down menu. Select "MPEG-4 Movie" as the output format.

Step 3, Change MP4 Video and audio Settings
You can change the Resolution, Encoder, Bit rate and Frame rate of the MP4 video and Sample Rate, Channels, Encoder and Bit Rate of the MP4 Audio. The size of the MP4 file depends a lot on these settings.

Step 4, Select output directory
Expand the "Output" panel. Use the "Browse" button to select an output directory.

Step 5, Click 'Start' to convert WMV to MP4 on Mac
After all the settings, just click 'Start' to convert .wmv to .mp4 file on Mac OS X. If you want to trim, crop and more editing, please go to
how to trim, crop and merge MP4 videos on Mac.

Related articles:
Tips on how to convert WMV to MOV on Mac
Tips on how to convert WMV to FLV on Mac

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Besides Convert WMV to Mp4 on Mac, you can also Convert WMV to DVD on Mac.

if you want to learn more details, please consult the article:

How to Convert WMV to DVD on Mac OS X

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