File Juicer

File Juicer for Mac OS X

Overview of Formats

Search & Extract

Images

jpg jpeg 2000 gif png pdf wmf emf tiff eps pict bmp

Video

mov mpeg avi wmv

Sound

mp3 wav System 7 au aiff

Text

ascii rtf html

From:

avi cab cache chm dmg doc emlx exe ithmb m4p mht mp3 pdf pps ppt raw swf wps xls zip and other formats
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m4v - MPEG4 video

I have not seen mv4 files embedded inside other files, but File Juicer should be able to extract them should it occur. It will be identified as a mp4 extension though.

To convert m4v files to other formats you can use QuickTime Pro or ffmpegX.

iTunes is set as the default application for m4v files, to sync them with the iPod video.

You can create m4v files with iSquint which is faster than Quicktime Pro. iSquint is a special edition of ffmpegX compiled specially for this purpose.