2009 Mazda CX-7 Owner's Manual - Page 244

Interior Comfort Audio System About folders and files l The order of hierarchy for MP3 files and folders during playback or other functions is from shallow to deep. The arrangement and playing order of a recorded disc containing MP3 files is as follows: File number A numerical file number is assigned to each file in a folder in the order of hierarchy from shallow to deep. Folder number A numerical folder number is assigned to each folder in the order of hierarchy from shallow to deep. l l l l l l NOTE Folders and tracks (files) within the same hierarchy play in the order they were written to the disc depending on the write software. Folder No. : Folder : Track (File) l l 01 02 04 3 l The folder order is automatically assigned and this order cannot be optionally set. Any folder without an MP3 file will be ignored. (It will be skipped and the folder number will not be displayed.) MP3 files not conforming to the MP3 format containing both header frames and data frames will be skipped and not played. This unit will play MP3 files that have up to eight levels. However, the more levels a disc has, the longer it will take to initially start playing. It is recommended to record discs with two levels or less. A single disc with up to 512 files can be played and a single folder with up to 255 files can be played. When naming an MP3 file, be sure to add an MP3 file extension (.mp3) after the file name. The maximum number of characters that can be used for file names is as follows. However, this unit will only display up to 32 characters, including the file extension (.mp3). Maximum number of characters in a file name (including a separator "." and the three letters of the file extension) 12* 31* 64 128 03 2 05 4 06 5 1 Level1 Level2 Level3 Level4 Playback may not occur in the above hierarchy depending on the audio unit. ISO9660 level 1 ISO9660 level 2 Joliet extended format Romeo extended format * English one-byte characters (capitalized only) and underbar "_" are available. 6-22