Comment 1 for bug 568718

This is clearly a banshee bug (in regards to notify-osd for sure). Check rhythmbox, which does correctly update an already existing notification-bubble and thus avoiding queuing up outdated notifications, when quickly skipping tracks. notify-osd provides code-examples in C, C# and Python (but stick to the C-examples, as they are most up-to-date) demonstrating how to properly update an already existing bubble.