The situation with PS2 games is a bit more clouded. If Sony has already nailed PS1 emulation so well, why not carry that capability over to the much more powerful PS4? Sony Worldwide Studios head Shuhei Yoshida even admitted last year that emulation would be ideal: “The easiest thing technically would be to make PS1 games work on PS4 through emulation.” Heck, even save files are compatible between PS3, PSP, Vita, and old PS1 memory cards. This is interesting for people hoping to run old discs because that emulation is exactly how the PS3 runs PS1 discs (even the Slim model). Eurogamer’s sources indicate Sony intends to bring that emulation to the PS4. Sony also has a PS2 emulator running for the PS3, but it can only accurately run a relative handful of PS2 games - the games in the PS2 classics section of the PlayStation Store. Sony has a PS1 emulator that runs most of these games well on the PS3, the PSP, and even the Vita, without those games needing any alternations.

As Eurogamer states, this would basically be the same way compatibility with PS2 and PS1 games works on PS3 models that don’t use the Emotion Engine (i.e., everything built after the 20GB and 60GB Japanese and North American models that debuted in 2006).

Pcsx2 emulator with good sound