A format of data recorded in a DVD-Audio disc is composed of an audio manager and a plurality of audio title sets following the AMG. User activity data generated by execution of an application on the mobile device may be analyzed to determine geographic locations that indicate places the user is likely to be in the future. A wireless communication interface, which is selectively separable from the multimedia presentation device at the electrical connector, receives multimedia data over a wireless communication channel. The method includes obtaining an indication of acceptance of the request for help from at least one friend of the requestor.