I usually install Ultrapack version first, then...
Make 2 folders (Drums and Real Tracks) in separate locations and just copy content of corresponding folders from supplied audiophile drive to internal. Then point BIAB to those folders for Rt/Rds.

With this approach you can copy content in blocks, to be safe. Last year I used a software to compare both source and target folders and just copy the newer content.


There were quite a few discussions on this matter with ideas put forward as:

Obvious, but likely not simple - switch to Flac, reducing the size by 1/2

Obvious and simple-offer Audiophile to Audiophile update on USB flash drive, with just new content shipped.

Obvious & simple, but time consuming - download just the yearly newer content.

Obvious and simple, but pricey, offer a choice to upgrade spinner drive to any other drive (at buyer cost of course)