51 51MP3 (MPEG Audio Layer 3) is a standard format for audio compression technology. By usingMP3, a file can be compressed to one-tenth the size of the original.WMA (Windows Media™ Audio) is the Microsoft's voice compression technology. WMA filescan be compressed to a size smaller than MP3 files.This receiver accepts certain MP3/WMA file standards, recorded media and formats. Use thefollowing notes when you write MP3/WMA files on a disc.■ Playable MP3 File Standards● Supported standards:MPEG Audio Layer 3 (=MPEG1 Audio Layer III, MPEG2 Audio Layer III, MPEG2.5 AudioLayer III)● Supported sampling frequencies:8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 (kHz)● Supported bit rates:8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 192, 224, 256, 320 (K bps)* Supports VBR.* Does not support free format.● Supported channel modes:Stereo, Joint Stereo, Dual channels, Monaural■ Playable WMA File Standards● Supported standards:WMA Ver. 9 Standard Decoder Class 3 satisfied● Supported sampling frequencies:22.05, 32, 44.1, 48 (kHz)● Supported bit rates:20, 22, 32, 36, 40, 44, 48, 64, 80, 96, 128, 160, 192, 256, 320 (K bps)* The 2-channel play is only supported.* Supports VBR. (5 to 320K bps)* Does not support lossless compression.MP3/WMA