2011 GMC Acadia Owner's Manual - Page 224

7-24 Infotainment System DVD Error Messages Player Error: This message displays when there are disc load or eject problems. Disc Format Error: This message displays, if the disc is inserted with the disc label wrong side up, or if the disc is damaged. Disc Region Error: This message displays, if the disc is not from a correct region. No Disc Inserted: This message displays, if no disc is present when Z DVD or DVD/CD AUX is pressed on the radio. MP3 (Radios with CD/USB) Format Radios that have the capability of playing MP3s can play .mp3 or .wma files that were recorded onto a CD-R or CD-RW disc. The files can be recorded with the following fixed bit rates: 32 kbps, 40 kbps, 56 kbps, 64 kbps, 80 kbps, 96 kbps, 112 kbps, 128 kbps, 160 kbps, 192 kbps, 224 kbps, 256 kbps, and 320 kbps or a variable bit rate. Radios that have a USB port can play .mp3 and .wma files that are stored on a USB storage device as well as AAC files that are stored on an iPod®. Compressed Audio or Mixed Mode Discs The radio can play discs that contain both uncompressed CD audio and MP3/WMA files. If both formats are on the disc, the radio plays both file formats in the order in which they were recorded to the disc. CD‐R or CD‐RW Supported File and Folder Structure The radio supports: ... Up to 50 folders. Up to 8 folders in depth. Up to 15 playlists. Up to 512 files and folders. Playlists with an .m3u or .wpl extension. Files with an .mp3, .wma, or .cda file extension. .