compression ratio Lexus IS250 2015 Owner's Manual

2965-5. Playing an audio CD and MP3/WMA/AAC discs
IS350/250_U (OM53C50U)
■Error messages
If an error message is displayed, refer to the following table and take the appropriate
measures. If the problem is not rectified, take the vehicle to your Lexus dealer.
■Discs that can be used
Discs with the marks shown below can be used.
Playback may not be possible depending on recording format or disc features, or due to
scratches, dirt or deterioration.
CDs with copy-protection features may not play correctly.
■CD player protection feature
To protect the internal components, playback is automatically stopped when a problem is
detected.
■If a disc is left inside the CD player or in the ejected position for extended periods
Disc may be damaged and may not play properly.
■Lens cleaners
Do not use lens cleaners. Doing so may damage the CD player.
■MP3, WMA and AAC files
MP3 (MPEG Audio LAYER3) is a standard audio compression format.
Files can be compressed to approximately 1 /10 of their original size by using MP3 com-
pression.
WMA (Windows Media Audio) is a Microsoft audio compression format.
This format compresses audio data to a size smaller than that of the MP3 format.
AAC is short for Advanced Audio Coding and refers to an audio compression technol-
ogy standard used with MPEG2 and MPEG4.
MP3, WMA and AAC file and media/ formats compatibility are limited.
MessageCauseCorrection procedures
“Check disc”
• The disc is dirty or dam-
aged.
• The disc is inserted upside down.
• The disc is not playable
with the player.•Clean the disc.
• Insert the disc correctly.
• Confirm the disc is play- able with the player.
“DISC Error”There is a malfunction
within the system.Eject the disc.
“No music files found.”No playable data is
included on the disc.Eject the disc.