Diablo 3 (Ps4) version difference?

Cr
- in PlayStation
1

I want to download Diablo 3 Reaper of Souls from PSN Store. Now the game is not just Diablo 3 Eternal Collection.

what i wanted to know now what's the difference?

Am

Reaper of Souls is just the add-on, the Eternal Collection is the basic game with all classes, dlcs, add-ons and something