In Pa9 the "clean disc " feature claims to remove unused wave files from you hard drive and free up space. When i'v tried using this feature, it always deletes some tracks that i didn't want deleted.( so i don't use it for fear of losing stuff). But i notice that the PA9 saves all these wave files , hundreds, it looks like, which would take alot of time to go in there and listen to a sample of each and delete the one's that i REALLY don't want to clutter up my hard drive So, my question is why does it save ALL this crap that i don't need, and is there a way to make it stop doing that other than deleting them manualy as i discribed above..