WEBCHICK  DO NOT INSTALL REALPLAYER. IT IS COMPLETE SKANKWARE.

These guys have a well-documented history of installing spyware on your system. I will never ever use Real Media services or software as long as I am alive.

You wouldn't want your computer to get herpes would you? Of course not. DO NOT INSTALL REALPLAYER.  
(Version 11.1)

WEBCHICK  Not every program can be written to fulfill everyone's needs and skill sets. This is a venerable set of (mostly) command-line tools that will find the most use by developers, particularly those who work in a multi-platform environment. Its strengths lie primarily in the usefulness of these tools in scripts: whether it be processing one image on-the-fly or batch processing thousands of images. There are plenty of fine freeware GUI image processing applications out there, so if you're not looking for command-line image processing tools geared for developers, move along and no whining.  
(Version 6.4.8)