What Is Video Format; What Is Photo Format - Sony NWA805B Operation Manual

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Advanced Features
What is bit rate?
Bit rate refers to the amount of data used to store each second of audio.
Generally, higher bit rates provide better sound quality, but require more storage
space for the same length of audio.
What is the relationship between bit rate, sound quality, and storage size?
Generally, higher bit rates provide better sound quality, but require more storage
space for the same length of audio, so you can store fewer songs on the player.
Lower bit rates enable you to store more songs, but at a lower sound quality.
Note
 If you import a song from a CD to SonicStage at a low bit rate, you cannot improve
the song's sound quality by selecting a high bit rate when transferring the song from
SonicStage to the player.

What is video format?

The file format to compress video and audio data, and save it together.
Common formats include MPEG-4 and AVC, etc.
MPEG-4: MPEG-4 refers to Moving Picture Experts Group phase 4, developed
by the MPEG working group of the ISO. The compression format is for video
and audio data.
AVC: AVC refers to Advanced Video Coding, developed by the MPEG working
group of the ISO. It enables production of more vivid images at a lower bit rate.
AVC files include four profiles, and "AVC Baseline Profile" is one of them. AVC
format is based on the MPEG-4 AVC standard of the ISO, and since AVC is
standardized as the MPEG-4 Part 10 Advanced Video Coding, it is commonly
referred to as H.264/MPEG-4 AVC or H.264/AVC.

What is photo format?

The format of a photo refers to the method used by when importing images to
a computer and saving them as an image file. Common formats include JPEG,
etc.
JPEG: JPEG is a common image compression format developed by the JPEG
(Joint Photographic Experts Group). JPEG can compress an image file to about
1/10 to 1/100 the size of standard image files.
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For details on acceptable formats and bit rates for this player
 For details on supported file formats and bit rates, see  page 132.