Sony NWZ-E344BLK Operation Guide - Page 83

Table of Home Contents Menu Index 83 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 further 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. 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. JPEG is one example of a commonly used format. JPEG: JPEG (Joint Photographic Experts Group) is a common image compression format developed by the JPEG. JPEG can compress an image file to between 1/10 and 1/100 the size of original image files.  Hint  For details on supported file formats and bit rates, see  p. 110.