1. Duplicates of every song are added when the music player is started *after* starting the training.
2. When you are listening to some music while sending a workout to the service, the current song is added to the workout.
3. If you scroll through your playlist while recording a workout every song which was marked (not played) is also added to the workout.
4. Even if the player is active while sending the training to the service, the current song might be added to the playlist.
Sportstracker Version 2.06
I hope some of the development guys will read this... :)