2007 Nissan Versa Owner's Manual - Page 144

● Do not expose the CD to direct sunlight. ● CDs that are in poor condition or are dirty, scratched or covered with fingerprints may not work properly. ● The following CDs may not work properly: ● Copy control compact discs (CCCD) ● Recordable compact discs (CD-R) ● Rewritable compact discs (CD-RW) ● Do not use the following CDs as they may cause the CD player to malfunction: ● 3.1 in (8 cm) discs with an adapter ● CDs that are not round ● CDs with a paper label ● CDs that are warped, scratched, or have abnormal edges ● This audio system can only play prerecorded CDs. It has no capability to record or burn CDs. ● If the CD cannot be played, one of the following messages will be displayed. CHECK DISC: ● Confirm that the CD is inserted correctly (the label side is facing up, etc.). ● Confirm that the CD is not bent or warped and it is free of scratches. PRESS EJECT: This is an error due to excessive temperature inside the player. Remove the CD by pressing the EJECT button. After a short time, reinsert the CD. The CD can be played when the temperature of the player returns to normal. UNPLAYABLE: The file is unplayable in this audio system (only MP3 CD). virtually no perceptible loss in quality. MP3 compression removes the redundant and irrelevant parts of a sound signal that the human ear doesn't hear. ● Bit rate - Bit rate denotes the number of bits per second used by a digital music file. The size and quality of a compressed digital audio file is determined by the bit rate used when encoding the file. ● Sampling frequency - Sampling frequency is the rate at which the samples of a signal are converted from analog to digital (A/D conversion) per second. ● ID3 tag - The ID3 tag is the part of the encoded MP3 file that contains information about the digital music file such as song title, artist, album title, encoding bit rate, track time duration, etc. ID3 tag information is displayed on the Album/Artist/Track title line on the display. Compact Disc with MP3 Terms: ● MP3 - MP3 is short for Moving Pictures Experts Group Audio Layer 3. MP3 is the most well-known compressed digital audio file format. This format allows for near "CD quality" sound, but at a fraction of the size of normal audio files. MP3 conversion of an audio track from CD-ROM can reduce the file size by approximately a 10:1 ratio with 4-12 Heater, air conditioner, audio and phone systems