The user has to pick a root folder of the mp3 collection at start of the application. That root folder remains as long as it is not changed in the options to another folder. RandoMP3 can be closed after Winamp starts playing the mp3 album.

The root folder has to be rescanned when new mp3 albums have been copied into it. The second application is Charger which can fill a removable device with a specific amount of Megabytes of music. Alternatively it can fill the device until it reports to be full. This program is only directly available in the program folder that RandoMP3 gets installed into.

Charger supports multiple profiles which are useful if multiple users want to work with the software or if multiple devices are in use. The software remembers songs that already have been copied which ensures that no songs will be copied again if new songs that have not been copied yet are available in the mp3 collection.