One thing I always advise is NEVER get the plugin or any download from a site like facebook or any other sites known to have high infection rates, just because it pops up saying it is a quicktime plugin you will be downloading does NOT mean that is what you are really getting, that is a very well known way they are passing out some serious infections on those type sites. If you need plugins go to the actual site that it is for and get them there where you know you are getting the real thing, in this case the Apple Quick time site. (also note that you want to get only the part you need and not all the extra crud that apple tries to get you to install uncheck all the extras) saying it would not install really makes me think that it was not actually a quick time plugin you clicked on but a hidden malware behind the quicktime plugin install button, they are called clickjacking they hide other malware behind the button and when you hit install you get the install of the hidden malware. I would definitely install malwarebytes free, update it and run full scan. If and when you do need quicktime go to their site and get it, never get anything from a pop up on a website. Malwarebytes

I'm not a Apple user but microsoft has a couple things for mac users Windows Media Player 9 for Mac OS X Sporting a new brushed steel skin for Apple's newest operating system, this new version of our player opens the world of Windows Media 9 content to Macintosh users. Readme 6,990 KB 33 min @ 28.8 Kbps Windows Media® Components for QuickTime With Windows Media® Components for QuickTime, by Flip4MacÂ, you can play Windows Media files (.wma and .wmv) directly in QuickTime Player and view Windows Media content on the Internet using a Web browser. 3,686 KB 18 min @ 28.8 Kbps Here is a link that might be useful: Microsoft Downloads for Windows Media Player 9 for Mac (OS X):

I think in order to carry out the math, we would need to know the Bit rate per second that quicktime plays a file.

It's hard to say. It depends a lot on what amount of pixels it was filmed in, such as 800 X 600, or 1024 X 768, etc. I would guess a median of about 2 minutes? Kt