Jeep 2011 Liberty - Manual (Page 262)

If a disc contains multi-formats, such as CD audio and
MP3/WMA tracks, the radio will only play the MP3/
WMA tracks on that disc.
Supported MP3/WMA File Formats
The radio will recognize only files with the *.MP3/WMA
extension as MP3/WMA files. Non-MP3/WMA files
named with the *.MP3/WMA extension may cause play-
back problems. The radio is designed to recognize the file
as an invalid MP3/WMA and will not play the file.
When using the MP3/WMA encoder to compress audio
data to an MP3/WMA file, the bit rate and sampling
frequencies in the following table are supported. In
addition, variable bit rates (VBR) are also supported. The
majority of MP3/WMA files use a 44.1 kHz sampling rate
and a 192, 160, 128, 96 or VBR bit rates.
MPEG
Specification
Sampling Fre-
quency (kHz)
Bit Rate (kbps)
MPEG-1 Audio
Layer 3
48, 44.1, 32
320, 256, 224,
192, 160, 128,
112, 96, 80, 64,
56, 48
MPEG-2 Audio
Layer 3
24, 22.05, 16
160, 128, 144,
112, 96, 80, 64,
56, 48
WMA
Specification
Sampling Fre-
quency (kHz)
Bit Rate (kbps)
WMA 44.1 and 48
48, 64, 96, 128,
160, 192 VBR
ID3 Tag information for artist, song title, and album title
are supported for ID3 version 1 tags. ID3 version 2 is not
supported by the radios.
Playlist files are not supported. MP3 Pro files are not
supported.
260 UNDERSTANDING YOUR INSTRUMENT PANEL