Sony NWZ-S639F Operation Guide - Page 129
What is video format?, Useful Facts
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Table of Contents Menu Index 129 Useful Facts 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. For details on acceptable formats and bit rates for this player For details on supported file formats and bit rates, see page 159.