The boot disk with the map of Japan
Required to download navigation on Japanese cars, such as after you disconnect the battery, as well as for navigation in Japan.
For some systems, can activate the built-in MP3 and DVD functions.

The SHM-CD [Super High Material CD] format features enhanced audio quality through the use of a special polycarbonate plastic. Using a process developed by JVC and Universal Music Japan discovered through the joint companies' research into LCD display manufacturing, SHM-CDs feature improved transparency on the data side of the disc, allowing for more accurate reading of CD data by the CD player laser head. SHM-CD format CDs are fully compatible with standard CD players.

TheSHM-CD [Super High Material CD] format features enhanced audio qualitythrough the use of a special polycarbonate plastic. Using a processdeveloped by JVC and Universal Music Japan discovered through the jointcompanies research into LCD display manufacturing, SHM-CDs featureimproved transparency on the data side of the disc, allowing for moreaccurate reading of CD data by the CD player laser head. SHM-CD formatCDs are fully compatible with standard CD players.