LG NANO 81 User Manual page 139

Only Window Media Audio V7 and later are supported.
The AAC main profile is not supported.
Video files created by some encoders may not be played.
Video files in a different format than specified may not be played properly.
Video files stored on a USB storage device that does not support High Speed may not be
played properly.
Supported Music File Formats
Supported Music File Formats
File Format
mp3
wav
Audio
Dolby Digital, Dolby Digital Plus, AAC
Info
Bit rate
Sample freq.
Support
Channels
Bit rate
Sample freq.
Support
Channels
32 kbps ~ 320 kbps
16 kHz ~ 48 kHz
MPEG-1, MPEG-2
mono, stereo
-
8 kHz ~ 96 kHz
PCM
mono, stereo
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