This is a CD filled with some high quality free software.
I can speak for the windows one in saying I use almost half of those programs on a daily basis, and have about 2/3 of them installed on all of my windows machines, and most of the cross-platform ones I have installed on linux as well. Also several others that I’ve been reading about on their website that I’ve never heard of appear to be hidden gems to me that look very useful and very well done.
Check the Questions and Answers section to see the list of software packages on the CD.
The Open CD is also a good project with a similar aim in mind, but I prefer some of the Starving Students CD software in comparable categories (i.e. I prefer uTorrent instead of Azureus for my bittorrent needs)