I really want to clarify this. I use Sonar (not that it makes a difference) and have it set at 64bit. I want to export this as an unmastered mix so I can master it however may times I may need to in the future. I like to master in a new project using Isotope Ozone, and have the Waves mastering plugins,... if that info is necessary... Is there any point in exporting an unmastered mix as a 64bit file? IF NOT, then what dither setting should I use to export it down to a 24bit file.