2011 Lexus IS 350 Owners Manual - Page 229

3-2. Using the audio system n Discs that can be used Discs with the marks shown below can be used. Playback may not be possible depending on recording format or disc features, or due to scratches, dirt or deterioration. n CD player protection feature To protect the internal components, playback is automatically stopped when a problem is detected while the CD player is being used. n If CDs are left inside the CD player or in the ejected position for extended peri- ods CDs may be damaged and may not play properly. n Lens cleaners Do not use lens cleaners. Doing so may damage the CD player. n MP3 and WMA files MP3 (MPEG Audio LAYER 3) is a standard audio compression format. Files can be compressed to approximately 1/10 of their original size by using MP3 compression. WMA (Windows Media® Audio) is a Microsoft audio compression format. This format compresses audio data to a size smaller than that of the MP3 format. There is a limit to the MP3 and WMA file standards and to the media/formats recorded by them that can be used. l MP3 file compatibility • Compatible standards MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER3) • Compatible sampling frequencies MPEG1 LAYER3: 32, 44.1, 48 (kHz) MPEG2 LSF LAYER3: 16, 22.05, 24 (kHz) • Compatible bit rates (compatible with VBR) MPEG1 LAYER3: 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 (kbps) MPEG2 LSF LAYER3: 64, 80, 96, 112, 128, 144, 160 (kbps) • Compatible channel modes: stereo, joint stereo, dual channel and monaural 238