Some benefits of the Primetime Media Player include:
- High-quality Multiple Bit Rate (MBR) video playback support.
- HTTP Live Streaming (HLS) support on iOS and Android.
- HTTP Dynamic Streaming (HDS) support on desktop and Android.
- Content Protection and Business Policy Enforcement through Adobe Access : Full DRM and Protected Streaming with selectable output control and key rotation for linear, live and on-demand video.
The Primetime Media Player also offers fully compliant Communications and Video Accessibility Act (CVAA) features:
- Render in-stream closed captioning with built-in support for user-based rendering overrides
- Native support for multiple audio tracks
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http://mashable.com/2012/11/15/adobe-project-primetime/