If you need to regularly convert between various formats and need a little editing power as well, then iFunia Video Converter Pro for Mac is a very solid solution.
iFunia Video Converter Pro for Mac allows you to convert video of all popular formats including AVI, WMV, AVCHD, MKV, FLV, H.264/AVC, MP4, RM, MOV and 3GP. It features preset profiles for iPod, iPhone, PSP, Apple TV, and other portable devices. It also includes all the standard features you'd expect in such a converter, including batch conversion options, controls over brightness, contrast and saturation, and video cropping.
The most useful feature however, is the ability to perform some minor editing of footage before it is converted. Convert video. Edit video. Do it all with this powerful Mac video converter. This basically allows for cropping and adding watermarks but it's very easy to use. A two-pane window shows you the original footage and the edited footage in progress so you can see what you're doing properly.
The only minor problem with iFunia Video Converter Pro for Mac is that the conversion profiles are a little 'hidden'. You have to click on the 'Profile' category label to reveal them in a drop-down menu, but this should be made much more obvious and easy to find.
iFunia Video Converter Pro for Mac converts in multiple formats quickly and easily, making an excellent solution for beginners to video conversion and editing.