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This is a step by step guide show you how to convert .wmv to .H.264 on Mac OS X.

1. What's H.264

H.264 stands for. H.264 is known as one of the most popular video formats nowadays. In fact, H.264 was first introduced to the world by Microsoft in November 1992 as a multimedia format, part of Microsoft Video for Windows technology. H.264 files can contain audio data and video data, which are interleaved for the playback. The resolution of H.264 video varies from 640*480 to 160*120, keeping a 4:3 ratio.

2. How to convert WMV to H.264 on Mac

Free Download WMV to H.264 Video Converter for Mac:

To install it, simply mount the .dmg archive by double-clicking it, and copy the application to your applications folder (or wherever you want).

Step 1: Add WMV video files to Mac WMV to H.264 Converter

Click File -> Load Media Files to add WMV video files to the Mac WMV to H.264 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 H.264

Click the format type to reveal the output panel, and then choose MP4 as output format from Format list. 

Step 3: Change H.264 video and audio settings

To set your desired output quality, you can also click the gear icon to change the Resolution,Codec, Bit rate and Frame rate of the H.264 video and Sample Rate and Bit Rate of the H.264 Audio. The size of the H.264 file depends a lot on these settings.

Plus, you can click Output at the bottom left of the program window to specify the output folder.

Step 4: Hit Convert to kick off WMV to H.264 conversion on Mac

After all the settings, just hit the Convert button to start converting .wmv to H.264 file on Mac OS X (Snow Leopard, Lion included).