2007 Subaru Outback Owner's Manual - Page 202

5-29 MP3 audio What is MP3? MP3 (the name is an abbreviation of 'MPEG Audio Layer 3') is a compression format for digital audio. It was developed by the Motion Picture Experts Group. It permits audio data to be shrunk by a factor of approximately 10 with no loss of sound quality, meaning that the audio on 10 conventional CDs can be fitted onto a single CD-R or CD-RW (assuming a bit rate of 128 kbps and a sampling frequency of 44.1 kHz). tailed information can be found in the user's manuals for encoder software and writing software. A fixed bit rate of 128 kbps or higher is recommended. the writing software and CD recorder. Recording must be performed using a file system supported by the audio system. Otherwise, the audio system may not play the MP3 files and may not display folder titles and file titles. Saving MP3 files on a disc Do not save any non-MP3 file on a disc. Also, do not save any unnecessary folders on a disc. If many folders and/or non-MP3 files are saved on a disc, a delay will be caused before playback begins. If a disc contains both Compact DiscDigital Audio (CD-DA) files and MP3 files, the system will play only the CD-DA files. Add the extension '.MP3' to the name of every MP3 file. The system will not play any file that has either no extension or an extension other than '.MP3'. Do not add the extension '.MP3' to the name of any non-MP3 file. Doing so could lead to speaker damage. The system does not support multi-session recording, so disc-at-once recording is recommended. The system does not support packet writing software. The system does not have a playlist function. The system may not be able to display and play certain MP3 files depending on Supported file systems The audio system supports the following file systems: ISO 9660 Level 1/Level 2 Apple Extension to ISO 9660 Joliet Romeo NOTE MP3 encoding and writing software is not supplied with the audio system. CD writing software is not supplied with the audio system. NOTE Creating MP3 files To create a high-quality MP3 file, it is advisable to have a high bit rate (128 kbps or higher) and a high sampling frequency. If a file is created with a variable bit rate (VBR), the elapsed time during playback may not be displayed correctly and the sound may skip. The sound quality during playback depends upon the encoder and bit rate. De- The audio system does not support the following file systems: Apple HFS UDF 1.50 Mix CD (CD Extra) Compression format MPEG 1 audio layer 3 (MP3) Bit rate: 32 kbps - 320 kbps Sampling frequency: 32, 44.1, 48 kHz MPEG 2 audio layer 3 (MP3) Bit rate: 8 kbps - 160 kbps Sampling frequency: 16, 22.05, 24 kHz - CONTINUED -