MP4Cam2AVI is a MP4/MOV/M2TS to AVI repackaging tool for digital photo-video cameras, it makes their clips editable in VirtualDub, MovieMaker and other AVI editors. Also it can combine (join) multiple clips from camera into a single AVI movie, preserving audio/video sync.
No video recompression (by default), no quality loss, fast operation (5-20x realtime). No installation needed - just download, unzip and run mp4cam2avi.exe.
The best way to convert AVI to Apple ProRes on Mac is Avdshare Video Converter, you can have a try
Today we could say avi format that is being considered as output format is obsolete. All the video editors, web browsers and mobile devices can play the subset of mp4 format. So I prefer another converter, Mp4 Video 1 Click (search at sourceforge or google it). It accepts video in any format and generate mp4 file that is playable by all the browsers and all the devices. Also It does all the conversion in exactly one mouse click.