2007 Toyota 4Runner Navigation Manual - Page 195

06 05.26 AUDIO/VIDEO SYSTEM ISO 9660 format- This is the international standard for the formatting of CD−ROM folders and files. For the ISO 9660 format, there are two levels of regulations. Level 1: The file name is in 8.3 format (8 character file names, with a 3 character file extension. File names must be composed of one−byte capital letters and numbers. The "_" symbol may also be included.) Level 2: The file name can have up to 31 characters (including the separation mark "." and file extension). Each folder must contain fewer than 8 hierarchies. m3u- Playlists created using "WINAMP" software have a playlist file extension (.m3u). MP3- MP3 is an audio compression standard determined by a working group (MPEG) of the ISO (International Standard Organization). MP3 compresses audio data to about 1/10 the size of that on conventional discs. WMA- WMA (Windows Media Audio) is an audio compression format developed by Microsoft. It compresses files into a size smaller than that of MP3 files. The decoding formats for WMA files are Ver. 7, 8, and 9. VI 195