H.264 video playback, surround sound, MPEG-4 codec, Instant-on streaming...
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New in v7.x: Resolves numerous vulnerabilities in the way different types of image and media files are handled, various other bug fixes and minor enhancements for earlier releases; Release Notes - Last Updated: 11.19.09 (v7.6.5)
Upgrade Meter: 2
New in v7.0: H.264 video playback, surround sound support, zero-configuration streaming, live resize, new and improved playback controls; Release Notes - Last Updated: 10.17.05 (v7.0.3)
Upgrade Meter: 5
New in v6.5.2: Minor feature enhancements and bug fixes for v6.5.1 - Last Updated: 10.27.04 Upgrade Meter: 2
New inv6.3: Automatic detection of streaming transport; improvements to DV audio and video synchronization; enhanced support for Keynote, iMovie, and iDVD; various other enhancements and bug fixes for earlier v6.x releases; Release Notes Upgrade Meter: 4
New inv6.0: MPEG-4 video codec, AAC audio codec, Instant-on streaming, Macromedia Flash 5, enhanced interface, MPEG-4 ISO compliant file creation, QuickTime Picks, improved compression and capture, JPEG 2000 support (Mac OS X only); Release Notes Upgrade Meter: 5
New in v5.0: Skins support, cubic VR support, integrated Flash 4 support, "skip protection" (when used with QuickTime Streaming Server 3), support for DLS files and SoundFonts in music synthesizer, various bug fixes; Release Notes Upgrade Meter: 5
New in v4.1.2: Primarily bug fixes for earlier 4.x releases & minor feature enhancements Upgrade Meter: 2
New in v4.1: Support for Variable Bit Rate (VBR) MP3 files, multiple movie playback support via SMIL, improved streaming through better HTTP navigation, Release Notes Upgrade Meter: 4
New in v4.0: Completely redesigned interface, support for vector-based sprites and digital hot spots, plays MP3 audio files, live video and audio streaming support, new Web installation program, support for Macromedia's Flash file format; Release Notes Upgrade Meter: 5
New in v3.0.2: DV media stream support, MoviePlayer 3.0, QuickTime VR 2.1, QuickTime Plug-in 2.0, QuickDraw 3D, new A/V compression technologies (including Qualcomm PureVoice and Sorenson Video), miscellaneous bug fixes; Release Notes Upgrade Meter: 5
Pros: Supports audio and video content, currently the only driver that plays MOV files
Cons: QuickTime moviews typically lack the quality and size of MPEG files