Honda Civic Owner's Manual page 200

Audio System (Models with navigation system)
Some versions of MP3, WMA, or
AAC format may not be supported. If
an unsupported file is found, the
audio unit displays UNSUPPORTED,
then skips to the next file.
In WMA or AAC format, DRM
(digital rights management) files
cannot be played. If the system finds
a DRM file, the audio unit displays
UNPLAYABLE FILE, and then skips
to the next file.
Combining a low sampling f requency
with a low bitrate may result in
extremely degraded sound quality.
194
Connecting a USB Flash Memory
Device
USB CONNECTOR
USB ADAPTER CABLE
Pull out the USB connector from
1.
the holder and remove the cable
from the clip in the console
compartment.
USB CONNECTOR
Connect the USB flash memory
2.
device to the USB connector
correctly and securely.
When the USB flash memory device
is connected and the USB mode is
selected on the audio system, the
WMA or MP3 indicator is shown on
the navigation screen. It also shows
the folder and file numbers, and the
elapsed time on the screen.