What Is Video Format; What Is Photo Format - Sony Walkman NWZ-X1051 Operation Manual

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Useful Facts
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 your computer at a low bit rate, you cannot improve
the song's sound quality by selecting a high bit rate when transferring the song from the
computer to the player.

What is video format?

Video format refers to the method used when importing video and audio data
to a computer and saving it as a video file.
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 (International Organization for
Standardization). 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 (International Organization for Standardization). It enables
reproduction 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 (International Organization for
Standardization), and since AVC is standardized as the MPEG-4 Part 10
Advanced Video Coding, it is commonly referred to as MPEG-4 AVC/H.264 or
H.264/AVC.
WMV: WMV (Windows Media Video) is a video compression format
developed by Microsoft Corporation. It was built upon MPEG-4, achieves a
high compression rate, and supports copy control by DRM.

What is photo format?

Photo format refers to the method used when importing images to a computer
and saving them as image files. Common formats include JPEG, etc.
JPEG: JPEG (Joint Photographic Experts Group) is a common image
compression format developed by the JPEG. JPEG can compress an image file
to about 1/10 to 1/100 the size of original image files.
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Hint
 For details on supported file formats and bit rates, see  page 173.