To make a long story short, I bought a new hard drive for my PS4 (HGST 1.5TB) so I didn't have to mess around with transferring a bunch of data later on. However, I already had a couple games installed, KZ: Shadow Fall and Resogun. I'm not worried about Shadow Fall, since it's a hard copy, but Resogun has me a little worried. What happened was, I got the new hard drive, and it was hard locking my PS4 to where I had to manually power it down completely. This happened 4 times in the first hour, but it was after I downloaded Resogun. This means that it has been on 2 hard drives now. I am sending the new hard drive back for a replacement of the same drive just to see if it was defective, which it probably was, since people, overall, have been having good luck with this drive, but I'm worried because this means that Resogun will have been on 3 drives. So my question is, "How many drives can a game be on before DRM becomes a problem?" I hadn't even thought about this until today when I got my replacement drive, and now I'm a little worried that, if this drive gives me trouble too and I have to replace it again, I'll eventually not be able to install the game because of DRM issues not allowing me to install it on another drive. Anyone have a definitive answer as to how many drives a game can be installed on?