I would advise that you call PG Music Support to talk you through this one. However, I'll take a crack at it.

Yes, 2011 introduced the Elastique algorithm, and as a consequence, they needed only one-third the previous number of files for RealTracks. There is a menu choice in the Preferences, RealTracks to shrink the files. I'm not in front of BIAB so I can't tell you the exact wording, but you could do this first. It would dramatically reduce the size of BIAB on your hard drive, to about 40% of what it used to be. Then you are prepared to install the new version. Note that this should ONLY be done on a machine fast enough. Again, PG Music could advise better.


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.