I have a Mac and I recently upgraded from Notion 5 to Notion 6. The sound files from 5 didn't work on 6 and I had to download new files. I assume, however, that means the sound files from Notion 5 are still somewhere on my hard drive taking up useless space but I can't find them. I looked in Library > application support > Notion 5 Music and in Library > Audio but don't see anything. Is it possible to remove them and where would they be hiding?