Videozilla also perform audio extraction from a video and save as audio MP3 or WAV.
Just right-click any video files on Windows Explorer and click convert on the context menu shown, videozilla will immediately convert the video files to another video formats or extract as only audio formats.

The major supported video formats are:
AVI (DivX, XviD, MS MPEG-4, Uncompressed, Cinepak and other)
MPEG (MPEG (MPEG-1 and MPEG-2 Video, VCD and SVCD, PAL, and NTSC)
WMV (Windows Media Video)
RM (Real Networks Video) - write only
DVD format
ASF format
QuickTime MOV format - read only
Flash 8 SWF / FLV - write only
Flash MX SWF / FLV - write only
Flash 3 - 6 SWF - write only
Flash Vector SWF - write only

Key Features:
* Convert to AVI Video
* Convert to MPEG Video
* Convert to WMV Video
* Convert to RealMedia Video
* Convert to FLASH Video - new
* Support ASF Video
* Support MOV Video
* Support AVI Video
* Support MPEG Video
* Support WMV Video
* Support RealMedia Video
* Support Flash 8 SWF - new
* Support Flash 8 FLV - new
* Support Flash MX SWF - new
* Support Flash MX FLV - new
* Support Flash 3-6 SWF - new
* Support Flash Vector SWF - new
* Right-Click convert from Windows Explorer
* Extract video to MP3 audio
* Extract video to WAV audio
* Advanced Video Player

No pass needed 

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