Why Groove doesn't like PS2 Discs...?

[Slynk]

maybe there already is one

XD Maybe. But I'm no hacker, and I'm barely able to keep up with how everything works so far. So I have no idea of how to find it. I can conceptualize things pretty well but I'm not great at implementing them.

[Jon Salat]

From what I can tell, PS3 software does not have access to PS1 Format Discs, but they do have access to PS2 Format Discs.

PS1 discs never show up in any file manager, FTP, emulator, or any other software that I've tried, despite being displayed on the XMB. PS2 discs do though, which makes sense as Singstar PS3 has the option to swap discs with the PS2 versions and import songs, even on the slim;

We added to the PS3 SingStar game \’engine\’ the ability to read and decode the tracks from a SingStar disc for PS2. Keeping it within the PS3 game also means you can still play your downloaded tracks.

I'm not aware of anything similar for PS1 discs. This might rule out playing original PS1 discs on a homebrew emulator (PS1 discs are still region locked on PS3).

It also seems that PS3 software is restricted to accessing only certain file types on "data discs", specifically media files already permitted to be copied from the XMB. This could hinder playing original discs of other systems through emulators. Incidentally, I can't even get a data disc to display on the XMB, let alone in a file manager or FTP if it has any files named ".pkg" on it, despite having other media on it which will display in the XMB when burnt to discs without .pkg files. Some form of protection no doubt.

It should be possible to rip PS2 discs at least, but maybe not PS1 discs.

Apparently (I don't have this game) in MGS4, act 4.1 you play an act from the PS1 version of MGS1, which caused the game to hang on backups, a problem which has since been solved so that this act can now be played.

It's speculated that this act is played through the PS3's PS1 emulator. If that is the case then it should be possible to make a homebrew PS1 backup loader using the same code as MGS4 used to play MGS1. It might be simpler to first hack another PS1 game into MGS4 instead of MGS1 though. MGS4 is certainly worthy of study to try to understand what it does to trigger the PS1 emu (if indeed it actually does).

[user]

Apparently (I don't have this game) in MGS4, act 4.1 you play an act from the PS1 version of MGS1, which caused the game to hang on backups, a problem which has since been solved so that this act can now be played.

do you get the original mgs1 pause screen/options menu when pressing start?
and most important: does the controller lose it's connection to the ps3 when the mgs1 part begins?

if not i think they just ported the mgs1 engine to the ps3 or maybe the mgs4 engine is backwards compatible.

[Jon Salat]

I don't have MGS4 to test your first point, although I do have MGS1 which may come in handy for if I do get MGS4. There is clearly something unusual happening which caused backups to hang at this point though.

On your second point, you don't have to resync the controller for PS1 games as it's all done under the GameOS, this applies to both disc games and PSN games. It's PS2 games which require you to resync the controller as it effectively reboots into the PS2 hardware.

[Jon Salat]

A couple of interesting things I've noticed;

If you don't have anything except the Jailbreak plugged into the USB ports the payload will inject itself again when you quit a PS2 game and the PS3 soft resets back to GameOS. The reason I never noticed this before is because I always had the flash running from USB in able to boot PS1/PS2 discs in the first place. It resets everything though, so you have to run Jaicrab FW Loader again in order to play another PS2 game. No need to turn off/power/eject the PS3 though!

For convenience use Deanrr's modified version of FW Loader which runs from the memory card ports, so no need to remove a USB drive running the flash before you quit the PS2 game.

The second thing I noticed was the file "ps2bootparam.dat" in /dev_hdd0/tmp/game/

I'm not sure what this is for, but maybe to tell the PS2 emulator whether to use software or hardware depending on which PS3 model one has.

I've uploaded both the modified FW Loader and ps2bootparam.dat below;

Download PS2.rar for free on uploading.com

[Slynk]

A couple of interesting things I've noticed;

If you don't have anything except the Jailbreak plugged into the USB ports the payload will inject itself again when you quit a PS2 game and the PS3 soft resets back to GameOS. The reason I never noticed this before is because I always had the flash running from USB in able to boot PS1/PS2 discs in the first place. It resets everything though, so you have to run Jaicrab FW Loader again in order to play another PS2 game. No need to turn off/power/eject the PS3 though!

For convenience use Deanrr's modified version of FW Loader which runs from the memory card ports, so no need to remove a USB drive running the flash before you quit the PS2 game.

The second thing I noticed was the file "ps2bootparam.dat" in /dev_hdd0/tmp/game/

I'm not sure what this is for, but maybe to tell the PS2 emulator whether to use software or hardware depending on which PS3 model one has.

I've uploaded both the modified FW Loader and ps2bootparam.dat below;

Download PS2.rar for free on uploading.com

Hmm, I'm not sure what that's for. But I'll look at it.

[bublik462]

A couple of interesting things I've noticed;

If you don't have anything except the Jailbreak plugged into the USB ports the payload will inject itself again when you quit a PS2 game and the PS3 soft resets back to GameOS. The reason I never noticed this before is because I always had the flash running from USB in able to boot PS1/PS2 discs in the first place. It resets everything though, so you have to run Jaicrab FW Loader again in order to play another PS2 game. No need to turn off/power/eject the PS3 though!

For convenience use Deanrr's modified version of FW Loader which runs from the memory card ports, so no need to remove a USB drive running the flash before you quit the PS2 game.

The second thing I noticed was the file "ps2bootparam.dat" in /dev_hdd0/tmp/game/

I'm not sure what this is for, but maybe to tell the PS2 emulator whether to use software or hardware depending on which PS3 model one has.

I've uploaded both the modified FW Loader and ps2bootparam.dat below;

Download PS2.rar for free on uploading.com

i dont thing what its ps2 eulator.

if you want launch ps2 games with ps3breake u need use CFW 1.0 and
rename category_game to the category_game_tool2

[Slynk]

i dont thing what its ps2 eulator.

if you want launch ps2 games with ps3breake u need use CFW 1.0 and
rename category_game to the category_game_tool2

This is already know and stated in the thread <.< We're trying to find out how to launch into PS2 mode at will now.

[user]

can ref tools or debug units run ps2 masterdiscs?

[[C*]]

can ref tools or debug units run ps2 masterdiscs?

I believe debug units can run PS1 and PS2 backups fine:
Playing PS2/PS3 backups on a TEST PS3 - PS3 NEWS - PlayStation 3 News - PS3 Forums