1983-2. Using the audio systemnMP3 and WMA filesMP3 (MPEG Audio LAYER 3) is a standard audio compression format.Files can be compressed to approximately 1/10 of their original size by using MP3compression.WMA (Windows Media TMAudio) 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/formatsrecorded by them that can be used.lMP3 file compatibility* Compatible standardsMP3 (MPEG1 LAYER3, MPEG2 LSF LAYER3)* Compatible sampling frequenciesMPEG1 LAYER3: 32, 44.1, 48 (kHz)MPEG2 LSF LAYER3: 16, 22.05, 24 (kHz)* Compatible bit ratesMPEG1 LAYER3: 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 (kbps)* MPEG2 LSF LAYER3: 64, 80, 96 , 112, 128, 144, 160 (kbps)* Compatible with VBR* Compatible channel modes: stereo, joint stereo, dual channel and monaurallWMA file compatibility* Compatible standardsWMA Ver. 7, 8, 9* Compatible sampling frequencies32, 44.1, 48 (kHz)* Compatible bit ratesVer . 7, 8: CBR 48, 64, 80, 96, 128, 160, 192 (kbps)Ver. 9: CBR 48, 64, 80, 96, 128, 160, 192, 256, 320 (kbps)*Only compatible with 2-channel playbacklCompatible mediaMedia that can be used for MP3 and WMA playback are CD-Rs and CD-RWs.Playback in some instances may not be po ssible, depending on the status of theCD-R or CD-RW. Playback may not be po ssible or the audio may jump if the discis scratched or marked with fingerprints.