the Sony PSP and various DVD players, on the software side, most DirectShow / Video for Windows codec packs include a MP4 parser, but not one for MOV. In QuickTime Pro's MPEG-4 Export dialog, an option called "Passthrough" allows a clean export to MP4 without affecting the audio or video streams. QuickTime 7 now supports multi-channel AAC-LC and HE-AAC audio (used, for example, in the high-definition trailers on Apple's site), for both .MOV and .MP4 containers. History Apple released the first version of QuickTime on December 2, 1991 as a multimedia add-on for System 6 and later. The lead developer of QuickTime, Bruce Leak, ran the first public demonstration at the May 1991 Worldwide Developers Conference, where he played Apple's famous 1984 advertisement in a window at 320×240 pixels resolution. QuickTime 1.x The original video codecs included: the Animation codec, which used run-length encoding and was better suited to cartoon-type images with large areas of flat color the Apple Video codec (also known as "Road Pizza"), suited to normal live-action video. the Graphics codec, for 8-bit images, including ones that had undergone dithering The first commercial project produced using QuickTime 1.0 was the CD-ROM From Alice to Ocean. The first publicly visible use of QuickTime was Ben & Jerry's interactive factory tour (dubbed The Rik & Joe Show after its in-house developers). The Rik and Joe Show was demonstrated onstage at MacWorld in San Francisco when John Sculley announced QuickTime. Apple released QuickTime 1.5 for Mac OS in the latter part of 1992. This added the SuperMac-developed Cinepak vector-quantization video codec (initially known as Compact Video). It could play video at 320×240 resolution at 30 frames per second on a 25 MHz Motorola 68040 CPU. It also added text tracks, which allowed for captioning, lyrics and other potential uses. Apple contracted San Francisco Canyon Company to port QuickTime to the Windows platform. Version 1.0 of QuickTime for Windows provided only a subset of the full QuickTime API, including only movie playback functions driven through the standard movie controller. QuickTime 1.6 came out the following year. Version 1.6.2 first incorporated the "QuickTime PowerPlug" which replaced some components with PowerPC-native code when running on PowerPC Macs. QuickTime 2.x Apple released QuickTime 2.0 for System Software 7 in June 1994—the only version never released for free. It added support for music tracks, which contained the equivalent of MIDI data and which could drive