2403-2. Using the audio systemlMP3 and WMA playbackWhen a disc containing MP3 or WMA files is inserted, all files on the disc are firstchecked. Once the file check is finished, the first MP3 or WMA file is played. Tomake the file check finish more quickly, we recommend you do not write in anyfiles other than MP3 or WMA files or create any unnecessary folders.Discs that contain a mixture of music data and MP3 or WMA format data cannotbe played.lExtensionsIf the file extensions .mp3 and .wma are used for files other than MP3 and WMAfiles, they will be mistakenly recognized and played as MP3 and WMA files. Thismay result in large amounts of interference and damage to the speakers.lPlayback*To play MP3 file with steady sound quality, we recommend a fixed bit rate of 128 kbps and a sampling frequency of 44.1 kHz.*CD-R or CD-RW playback may not be po ssible in some instances, depend-ing on the characteristics of the disc.*There is a wide variety of freeware and other encoding software for MP3 and WMA files on the market, and depend ing on the status of the encoding and the file format, poor sound quality or noise at the start of playback may result. In some cases, playback may not be possible at all.*When files other than MP3 or WMA files are recorded on a disc, it may take more time to recognize the disc and in some cases, playback may not be possible at all.*Microsoft, Windows, and Windows Media are the registered trademarks of Microsoft Corporation in the U.S.A. and other countries.NOTICEnCDs and adapters that cannot be used→P. 233nCD player precautions→P. 234
