Choosing a format automatically makes available a list of associated presets designed for particular delivery scenarios. Adobe Media Encoder uses characteristics of the source item to make its best guess about the best preset to select. You can create and save your own presets, export them, or import additional ones.
Adobe Technical Support supports only Adobe Media Encoder presets that are included with Adobe applications.
Create and save a custom preset
Mac OS: <drive>/Users/<user_name>/Library/Preferences/Adobe/Common/AME/5.0
In Adobe Media Encoder CS5.5 and later, the encoding presets are located in the same location as the Adobe Media Encoder CS5 files.
Import a preset
You can only import a preset for a given format when that format is selected in the Format menu. For example, If you try to add an MPEG 2 preset, you will get an error if the format is set to FLV. Change the format to MPEG 2 first to create a new preset.