When a file is dropped the program takes an audio sample from the music-file which it send to TRM-server and generates an audio fingerprint witch it sends back. This fingerprint is sent along with other info such duration of the song to MusicBrainz. If it doesn’t find anything more, info is sent to MusicBrainz. MusicBrainz then sends the correct information/metadata (such as artist, song and album) back to the QuickNamer program. The program then saves the information in the mp3 files (ID3, ID3v2) so that you can view the correct information using your favorite music player. Then it renames the files accordingly. But if that’s not enough it also displays some similar artists that you may like, using EchoCloud.