Patent ID: 8650496

Claim:
An information processing device comprising: a first memory arranged to store units of primary information, the primary information including digital audio files in MP3 format and descriptive information including the title and performer of each digital audio file; an audio player arranged to play the stored digital audio files; an interface arranged to allow a first user to select digital audio files to be played; a second memory arranged to store a first user profile regarding the selections, the first user profile based at least in part on how often the digital audio files are played and including rating information for various music categories and performers; a receiver arranged to receive wirelessly at least a part of a second user profile directly from a similar portable device in proximity to the information processing device regarding second user selections a second user makes from units of primary information stored on the similar portable device, wherein said second user selections include rating information for various music categories and performers; and a processor configured to determine a match between the first user profile and the second user profile received from the similar portable device through the receiver, said match being a measure of a resemblance between the first user profile and the second user profile, and identify through the interface the resemblance.