The fast answer is, Yes!

Linux (*nix in general) you Linux and BSD riding cowboys and girls should check out Quicktime 4 Linux [1] and/or MPlayer [2] if you haven't got it already.

Windows flavours, win95 is too old I'm afraid, but 98, NT, ME and XP, Vista and whatever else it's called these days will do nicely. Just pop right over to Apple.com/quicktime/downloads [3] and get yourself a free copy of Quicktime 6 - or go Pro (which costs something like 29 USD) for all them extra features, such as the ability to download any viewed Quicktime file with the easy right click button.

Mac classic - if you haven't gotten the latest QT just download [4] it from apple.

Mac OSX same to you, but you probably do have the latest version of quicktime. [5]

What browsers has the site been tested in? Here's a list of browsers and operating system combinations that we have tested this website in.
Internet Explorer (Mac Classic, Mac osX, Windows NT)
Opera [6] (Mac Classic, Mac OSX, Windows NT)
Mozilla & FireFox [7] (Linux, Mac Classic, Max osX, Windows NT, Windows XP)
Safari [8] (Mac OSX)

Quicktime 6 formatted films can also play in iPhone and on video iPods as well as on countless other gadgets. Cool huh?