159Return to the Top pageAppendixöUse of DualDiscWhen playing a “DualDisc” on this unit, the surface ofthe disc that is not played may be scratched while thedisc is inserted or ejected. Since the music CD surfacedoes not conform to the CD standard, playback may beimpossible.(A “DualDisc” is a disc with one surface containing DVDstandard signals and the other surface containingmusic CD signals.)öAbout disc formatThe disc format should be the one of the following.• ISO 9660 Level 1/2• Joliet• Romeo• Long file nameÑAbout filesThe following audio, video, and picture filesare supported.öAudio files• AAC-LC (.m4a)• MP3 (.mp3)• WMA (.wma)• Linear PCM (WAVE) (.wav)*Mass-storage-class USB device only• FLAC (.flac)*Mass-storage-class USB device onlyNOTE• If music of normal CD and other playback systemsare recorded in the same disc, only the playbacksystem recorded at the first setout is played.• WMA and AAC of which is covered with DRMcannot be played.• Although the audio files are complied withthe standards listed above, the play may beimpossible depending on the types or conditionsof media or device.• An online manual about audio files is posted onthe site, www.kenwood.com/cs/ce/audiofile/.On this online manual, detailed information andnotes which are not written in this manual areprovided. Make sure to read through the onlinemanual as well.öVideo files• MPEG1 (.mpg, .mpeg, .m1v)• MPEG2 (.mpg, .mpeg, .m2v)• DivX (.divx, .div, .avi)*Only for DVD• H.264/MPEG-4 AVC (.mp4, .m4v)*Mass-storage-class USB device only• WMV 9 (.wmv, .m2ts)*Mass-storage-class USB device only• MKV (.mkv)*Mass-storage-class USB device onlyöPicture filesOnly picture files in USB device can be displayed.Files stored in disc media is not supported.• JPEG (.jpg, .jpeg)• PNG (.png)• BMP (.bmp)NOTE• BMP and PNG can be set only as wallpaper.öPlaying order of filesIn the example of folder/file tree shown below, the filesare played in the order from 1 to 0.Root¡!2(1) ^¡3¡$4¡"¡#¡P5 ¡%: Folder: Audio file