There are several threads in Apple's QuickTime Discussions Board citing problems playing QuickTime movies in Explorer, especially the movie trailers on Apple's site (see one and two, for examples).

Apple's QuickTime is a 30-year-old technology but is still supported by Apple. Here's how to use the QuickTime Player included with macOS. Before the internet, and long before streaming, there was ...

启动安装程序，它会提供三个安装选项：最小安装（Minimum）、完全安装（Full）、和定制安装（Custom）。 如果使用插件在浏览 ...

Problems playing embedded media Some users have reported problems playing embedded media in Web browsers -- particularly Safari -- after updating to QuickTime 7.1.2. This problem is typified by a ...

It's easy to overlook the power of the steady and dependable QuickTime Player. Built right into OS X, many users don't necessarily think of it as a sophisticated app. Despite that, Apple has ...