59 MP3About MP3/WMAMP3 (MPEG-1 Audio Layer III) is a standard format for audio compression technology. Byusing MP3, a file can be compressed to one-tenth the size of the original.WMA (Windows Media ™ Audio) is the audio compression format by Microsoft. This cancompress files to a smaller size than MP3 can.This unit has limitations on MP3/WMA file standards and recorded media and formats thatcan be used. Be aware of the following points when recording MP3/WMA files.• Supported standards : MPEG-1 Audio Layer III• Supported sampling frequencies : 16, 22.05, 24, 32, 44.1, 48 (kHz)• Supported bit rate : 8 to 320 (kbps)* Supports VBR.* Does not support free format.* Bit rates vary for MPEG-1 and MPEG-2.• Supported channel modes : stereo, monaural, dual channel, joint stereoPlayable MP3 file standards