Adobe Media Encoder CS4 - Manual (Page 17)

14 USING ADOBE MEDIA ENCODER CS4
Video and audio basics
Last updated 4/29/2012
Important: The free trial version of Adobe Media Encoder software does not include some features that depend upon
software licensed from parties other than Adobe. For example, some codecs for encoding and decoding MPEG formats are
available only with the full version of Adobe Media Encoder software.
MPEG-1 Typically used for the Internet and CD-ROM, providing picture quality comparable with VHS quality at
quarter-screen frame size.
MPEG-2 Delivers higher quality video than MPEG-1. A specific form of MPEG2 was chosen as the standard for
compressing video for DVD video. This is called DVD-compliant MPEG-2. MPEG-2 compression is also used in
HDV, and supported in the HD-DVD, and Blu-ray formats.
MPEG-4 Includes many of the features of MPEG-1 and MPEG-2, and adds support for interactivity. It offers better
compression and reduces file size while maintaining the same perceptual quality level as MPEG-2. MPEG-4 part 10
(H.264, AVC) is the supported by the Blu-ray and HD-DVD formats.
Adobe Media Encoder offers a number of MPEG presets to optimize the output quality for various project types. If
you’re experienced with MPEG encoding, you can further fine-tune projects for specific playback situations by
customizing the presets in the Export Settings dialog box.