38DVR-505/DVR-7000 (EN)OperationsMP3 functionGuidance of MP3Media that can be played back with this equipmentUsable media : CD-ROM, CD-R, CD-RWUsable format : ISO9660 level 1.Files that can be played back : MP3 filesCreating media for playing back on this equipmentCompressing MP3Please set up the transfer bit rate setting for the compression software when compressing MP3 files as follow.MP3 Files : 128kbps recommended (32kbps-320kbps)÷ This unit is compatible with 32 kHz, 44.1 kHz (recommended) and 48 kHz sampling frequencies.Naming folders and filesSingle-byte characters between A and Z, single-byte numerais between 0 and 9, and the single-byte underscore(_) can bedisplayed. Ensure that the “.MP3”(MP3 files) extension log is attached to all file names.÷ Never add the MP3 extension log to any files other than MP3 files. If the MP3 extension log is added to any filesother than MP3 files, the equipment will assume that they can be played back, and this will produce loud noisesin the speakers, resulting in damage of adverse effects.Confirming media and filesCheck to ascertain that MP3 files can be played back correctly on the personal computer in use prior to saving them onto the media.Check to ensure that the saved file can be played back normally.÷ It is not possible to confirm that files can be played back correctly while they are being saved onto the media.When saving files onto mediaEnsure that the session is closed or finalized when data has been written on media. There are cases where media on which thesession has not be closed or finalized will not be played back correctly with this equipment.÷ There are cases were the folder names and file names will not be displayed correctly depending on the softwareused to save them.÷ Do not store files or folders other than MP3 on media to be played back with this equipment.÷ It is recommended that ten or less sessions are stored when recording MP3 files onto a media.÷ Some time may be required until the playback of multi-session discs starts.÷ There are cases where playback is not possible when MP3 files (CD-ROM) and music CD information (CD-DA) aresaved on the same media.Example for a hierarchical structure