Please consider in greater depth knowledge of applications when including in ccleaner what might or might not want cleaning. I refer to the aftermath of losing all my playlist history after running the latest version. Whilst Virtual DJ is listed, there is no detail as to what it cleans up, and by no stretch of the imagination would I expect it to include the tracklist play history and the database that is built up over years. ALL GONE. LOST WARNING Ccleaner now includes Virtual DJ - Uncheck in multimedia section of applications if you don't want to lose everything.
did you Analyse before cleaning?
right clicking the Virtual DJ entry in Mulitmedia will tell you what it will clean up.
was the database backed up at all?
right clicking the Virtual DJ entry in Mulitmedia will tell you what it will clean up.
If it's physical data on the hard disk yes Analyze will list what it can clean, however if it's registry data that gets cleaned then it won't give any relevant information at all.