It is quicktime, and all it's functionality and various forms that make macs a must have for video production professionals. Sure I can get Adobe Premiere or Avid on a PC, but unless I have a specific video workflow set up for that system that will be the same EVERY TIME for EVERY SINGLE CLIENT I work with (yah right), I will run into problems AT SOME POINT with quicktime codecs and quicktime functionality. I don't know if you know, but the overwhelming majority of video formats are quicktime based, and they come in all shapes and sizes. Some cameras like the 5D shoot H.264 quicktime files, which is really sort of a mastering format and is kind of limited. Many cinema cameras for commercials or TV shows shoot Prores quicktime files, which are robust and open ended and optimized for editing. Point is, even on a poorly configured or older mac you can run into trouble converting, manipulating and mastering the multitude of quicktime codecs you come across, and making them all work across various video software for editing, FX work, audio work and transcoding/exporting. On a PC you would have all sorts of trouble if you need to be able to handle whatever format comes your way, and do crazy shit with those formats in all kinds of software, converting it various ways throughout your process, unless you are sticking to a specific workflow all the time, or doing massive conversions on both ends. Sure you can play a quicktime file, like an AVI or a MP4 on your PC using quicktime player or FLV, but taking a bunch of native quicktime files and transcoding them, manipulating them, testing new software with various formats, good luck, not ideal. The mac OS and it's software are optimized to work with just about all of the current mainstream digital video formats that are getting spat out of cameras in fast paced professional production environments. There is also the most important thing of hard drives...if PCs and PC oriented video software went the extra mile for all quicktime format support through and through, and if all video, graphic and sound professionals switched to PCs for TV or Film production, we could all use PC drives and share the enormous amounts of media that we need to share constantly, but the industry can't rely on PCs for fast paced all inclusive video production, they all use macs, and if you went PC you wouldn't be able to share their workflow and work together, you'd be screwed. Mac for professionals is definitely not just a personal preference...I hate having to switch from my powerful gaming PC to my Mac drive on my hackintosh to do everything I need for work. Maintaining that hackintosh alone is a pain in the ass, and a comparable mac to my pc hardware...well doesn't exist, and the next best thing for a real Mac would cost be $5,000. And screw Final Cut, Apple killed it when they redesigned it, it's a joke and no entertainment professionals use it.