It is normal to install BIAB on top of all older versions. If you didn’t do that, then the Bonus Paks have always been unique so I recommend you install those. The others I’m not certain, but it does no harm to install them again even if you have the files.

One other tip: BIAB 2018 puts files in different places, but the old installers won’t. Run the Cleanup utility after you install older files. It’s in the /BB/Data folder.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.