The following content applies to the first generation Audi Q2L model. Overview DVD drives, car hard drives, SD card readers and USB mass storage device interfaces support the following audio/video file functions: It should be noted that: - Media drives do not support the Windows Media Audio 9 voice format. - Audi recommends a compression bitrate of at least 160kbit/s for MP3 files. If the audio band has a variable bitrate, the displayed remaining playback time may be skewed.