The data medium configuration or the devices or programs used for recording can cause individual tracks or data medium to be unreadable. Information can be found on the Internet on the best ways to create audio files, video files and data media (compression rate, ID3 tag etc.). 
Due to the larger quantity of data, it takes longer to read a data medium containing compressed audio files (such as MP3, WMA) than a “normal” audio CD. Complex directory structures can also the delay the reading process. If possible, only use data media with readable audio and video files. 
Play lists only define a certain playback sequence. Play lists do not save any files. Play lists cannot be played if the files on the data medium are not saved in the location to which the play list is referring (relative data path). Play lists cannot be copied to the media center (HDD). 
  NOTICE 
Do not use memory card adapters. 
  No liability can be accepted for damaged or lost files on the data media. 
Inserting or removing data media 
 
Fig. 150 Data media slots in glove compartment. 
 
 
GAWR  Gross Axle Weight Rating. 
GSM  Global System for Mobile Communications. 
GVWR  Gross Vehicle Weight Rating. 
HDD   Media Center (Hard Disk Drive). 
HFP  Hands-Free-Profile (mobile phone operation). 
HID  High Intensity Discharge headlights (HID). 
hp  Horsepower, engine power rating. 
IMEI  International Mobile Station Equipment Identity (unique serial number for identifica-tion of GSM terminal devices). 
kg  Kilogram – metric unit for weight. 
kN  Kilonewton, tractive force. 
kp  Kilopond, a measure of force. 
kPa  Kilopascal, unit of measure for tire pressure. 
kW  Kilowatt, engine rating. 
LED  Light Emitting Diode. 
m  Meter – metric unit of measure for length. 
MDI   Media Device Interface. 
MFI  Multi-Function Indicator. 
MP3  Audio file compression format. 
Nm  Newton meter, engine torque unit. 
OPS  Optical Parking System. 
PDC  Park Distance Control. 
PIN  Personal identification number. 
RDS  Radio Data System (enables additional functions). 
RON  Research Octane Number, measurement of anti-knock resistance of gasoline. 
rpm  Engine revolutions per minute (engine speed). 
rSAP  Remote SIM Access Profile (via Bluetooth). 
SAE  Society of Automotive Engineers. 
SIM  Subscriber Identity Module. 
SMS  Short Message Service. 
TDI® Turbocharged Direct Injection (Turbocharged diesel engine with direct fuel injec-tion). 
TIN  Tire Identification Number. 
TMC  Traffic Message Channel (for dynamic navigation).