[wentwood]

Sony

Make sure you have 2 accounts separate.

One for Play Station 4

One for Play Station 5

The reason for this is that Sony won't let you buy the upgraded edition of a game as you already have the game in your account.

I tested this with one game which was how I found this out.

Buy PS 4 games on that system and same separate for the PS 5.

The second thing happened with Metal Gear Solid collection.

What happened in this case was I got the game on PS 3 as a bundle disk but the PS 3 had to update and I would rather not want to risk my PS 3.

Metal Gear Solid 2 And 3 are PS 2 games.

So in this case buy the games for the system they were first released on. This is a software issue.

This is why I have PS 2 game disks mainly.

Even if new Gen systems reissue the game the game might not be compatible with the current Play Station.