RadioBOSS counts how many times a track was played.
To reset play counter for music tracks, please follow these steps:
1. Start Music Library: in RadioBOSS top menu click Tools->Music Library.
2. Use the Add menu to add files for which you want to reset the playcount.
3. Select all files, right-click, select Track Properties
4. In the Playcount field, enter "0" (without quotes) and click OK.