Black plate (23,1)Cadillac CTS/CTS-V Owner Manual - 2013 - CRC - 4/18/12Infotainment System 7-23Press the softkey under the Audiotab to display the current audiostream playing. “Audio Stream 1” or“Audio Stream 2” briefly displays.Press the softkey under the Audiotab again to toggle between AudioStream 1 or Audio Stream 2 (ifavailable).Check the DSP settings todetermine if a 5.1 surround soundaudio stream is playing. SeeOperation on page 7‑3 for moreinformation. Press the DSP tab tosee if the 5.1 + Normal or 5.1 +Rear settings are available forselection. If these settings areavailable, Audio Stream 1 is playing.Playing an MP3/WMA DiscCD/DVD players with the MP3feature are capable of playing anMP3/WMA on DVD+/−R, CD−R,or CD−RW discs. For moreinformation, see MP3 on page 7‑23.Disc MessagesDISC ERROR: If this messagedisplays and/or the disc ejects, itcould be for one of the followingreasons:. The radio system does notsupport the playlist format, thecompressed audio format, or thedata file format.. It is very hot. When thetemperature returns to normal,the disc should play.. The road is very rough. Whenthe road becomes smoother, thedisc should play.. The disc is dirty, scratched, wet,or upside down.. The air is very humid. If so, waitabout an hour and try again.. There was a problem whileburning the disc.. The label is caught in the CD/DVD player.If the disc is not playing correctly, forany other reason, try a knowngood disc.If any error occurs repeatedly or ifan error cannot be corrected,contact your dealer. If the radiodisplays an error message, write itdown and provide it to your dealerwhen reporting the problem.MP3MP3/WMA FormatThe Single CD and the Six-Disc CDRadio will play MP3/WMA files thatwere recorded on a CD-R orCD-RW disc. The HDD Radio canalso play MP3/WMA files recordedon DVD+/-R discs or stored on aUSB storage device. Some USBstorage devices may not besupported.