Information on PS2 Classics on PS3
Please note that this information was found on another site, and it was Translated from Spanish to English:
This information is based on what I have analyzed the game GTA San Andreas (NPUD20946), and somehow or other information seen on either sites.
The PS2 emulator for "PS2 classics" on PS3 is the "ps2_netemu.self" that has improved since firmware 3.70 onwards, these are not remastered classic: Here is a description of the files and file structure that make up these PS2 Classics:
|FILE / FOLDER NAME
||ISO (original PS2 game) encrypted
||the game-specific settings (profile)
||contains the ID of the album title, Example: SLUS-20946
||folder which contain the game's user manual.
||folder that makes up the virtual memory cards
The PS2 emulator for PS3 games run at 720p, for this reason they don't look very good on your screens, as it has no filters for up-scaling to that resolution.
The structure of the PS2 game GTA San Andreas Classic would look like (basically the same in all games "PS2 classics"):
The latest version of "ps2_softemu.self" software (exclusively PS3fat) was on firmware 2.70 after that lock disc based games, with an error "This title is currently not compatible with the PS3." After that PS2 Classics was released last year, "ps2_softemu.self" was removed in the current firmware.
"Ps2_netemu.self" is meant to be used only in PS2 games on PSN format. Maybe that's why the Cobra Team said: "Note that PS2 games are not backwards compatible machines no longer supported, because this functionality was removed in 4.30 OFW."
There was even a bootloader for PS2 games for PS3 SLIMS by putting them in factory mode could boot disk original games since the emulator using the 2.70 firmware, but that is why the very low compatibility, since it is not up to the 3.70 firmware improved by $ony make money with their PS2 classics and so customers have to repurchase PS2 games if they want to reuse them on their PS3.
PS2 Classics Game List: