After you have install HxMusicConverter, a virtual CD Burner has installed. So when you open HxMusicConverter, this prompt will pop up. Because Mac OS X thinks that there is a blank CD in the virtual CD Burner. Somebody may think the prompt window is anony, so they want to stop prompting.

1. open System Preferences application by Click the Apple menu item "System Preferences...".
2. Choose "CDs & DVDs" from System Preferences application.
3. Change the "When you insert a blank CD" selection as the value "Ignore".