Compressor About formats and settings
Compressor provides a variety of transcoding formats to create files playable on a variety of media platforms—Apple devices , Blu-ray discs, websites, and so on. Each of the built-in settings in the Settings pane uses a specific transcoding format compatible with industry-standard platforms.
You can see which format a setting is based on by looking at the summary information at the top of the inspector. 
Platform or use | Use video settings based on these formats | Use audio settings based on these formats |
|---|---|---|
Apple TV, iPad, iPhone, iPod touch, and the iTunes app |
| |
Web delivery, including YouTube, Facebook, and Vimeo | ||
Blu-ray discs | AC-3 (see Dolby Digital) | |
High-definition (HD) DVD | AC-3 (see Dolby Digital) | |
Standard-definition (SD) DVD | AC-3 (see Dolby Digital) | |
Audio CDs |
| |
HTTP Live Streaming | ||
Motion graphics applications |