32Operation• Total number of folders possible on a single memory: 999• Maximum folders this main unit can recognize: 1000**: A root directory is counted as one folder.How to operate the USB music file playerA USB memory or digital audio player with USB terminal can be connected to the USB connector allowingyou to listen to music files in USB memory.Listening to music files in USB memoryOperationFor details, refer to "Switching Audio Modes" on page 17.The operation procedure is the same as that of CD. Refer to "How to operate the CD/MP3/WMAplayer" (page 27 - 29).F2Root directory (F1)F498Folder 2Folder 498Folder 499F999 Folder 999001.mp3002.mp3003.mp3004.txt005.mp3001.mp3002.mp3F499[Configuration example for USB memory supporting MP3/WMA]Number of files possible on a single memory is 3000.Files aside from MP3/WMA files (Example: 004.txt) also count as singlememories.Connecting USB memory or digital audio player withUSB terminal by using USB connector1 Connect a USB memory using the USB connector.2 Switch to the USB mode.3 Operate the USB music file player.