2009 Jeep Grand Cherokee Owner's Manual - Page 246

244 UNDERSTANDING YOUR INSTRUMENT PANEL exceeding 20 folders will result in this display. With 200 files, exceeding 50 folders will result in this display.) • Maximum number of characters in file/folder names: • Level 1: 12 (including a separator . and a threecharacter extension) • Level 2: 31 (including a separator . and a threecharacter extension) Multisession disc formats are supported by the radio. Multisession discs may contain combinations of normal CD audio tracks and computer files (including MP3 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 playback may result in longer disc loading times. Supported MP3 File Formats The radio will recognize only files with the *.MP3 extension as MP3 files. Non-MP3 files named with the *.MP3 extension may cause playback problems. The radio is designed to recognize the file as an invalid MP3 and will not play the file. When using the MP3 encoder to compress audio data to an MP3 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 files use a 44.1 kHz sampling rate and a 192, 160, 128, 96 or VBR bit rates. MPEG Specification MPEG-1 Audio Layer 3 Sampling Bit Rate (kbps) Frequency (kHz) 320, 256, 224, 192, 160, 128, 48, 44.1, 32 112, 96, 80, 64, 56, 48, 40, 32