Dodge 2009 Challenger Owner's Manual page 192

190 UNDERSTANDING YOUR INSTRUMENT PANEL
Multisession disc formats are supported by the radio.
Multisession discs may contain combinations of normal
CD audio tracks and computer files (including MP3/
WMA files). Discs created with an option such as keep
disc open after writing are most likely multisession
discs. The use of multisession for CD audio or MP3/
WMA playback may result in longer disc loading times.
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 Sampling
Specification Frequency (kHz)
MPEG-1 Audio
48, 44.1, 32
Layer 3
MPEG-2 Audio
24, 22.05, 16
Layer 3
WMA Sampling
Specification Frequency (kHz)
WMA 44.1 and 48
Bit Rate (kbps)
320, 256, 224,
192, 160, 128,
112, 96, 80, 64,
56, 48
160, 128, 144,
112, 96, 80, 64,
56, 48
Bit Rate (kbps)
48, 64, 96, 128,
160, 192 VBR