It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

What makes the redux version different from the regular version? Why should I buy this?
This question / problem has been solved by triockimage
All in-game videos were remastered from original footage. Redux runs in truecolor only, opposed to the 1996 release which required only 256-color mode. This change makes the videos clearer and more colorful. The re-release also came with a bonus DVD, which contained a making-of, art galleries and other bonuses.
Post edited May 30, 2014 by triock
Most of the DVD extras are included as bonuses
grunthos64: Most of the DVD extras are included as bonuses
All of the DVD extras are, actually :)