A couple of PS2 demo's from a beta disk..

~No longer on this site.

 

Haha, funny thing ! Thanks for the info.

 

Did the demos even boot from the original disc (or at least, an image of it)?
If they worked from the disc, it is possible that you broke the games if they were made to expect data at specific LBAs.

 

I couldn't work out how to. I think some code was needed but the way I got the screenshots was to load the .elf files in the emulator. They sadly crashed upon loading though. The .iso I dumped just loads the Alpha of NFS:MW but these files still show in the boot file.

 

So the demos are physically on the disc, but aren't normally accessible?

Usually, you can't boot games with an emulator in that way (by booting the ELF directly) because they're made to expect their content on a disc.
You could try to boot them by first mounting the disc image in the emulator and then booting the ELF. The demos should find their files on the mounted disc.

 

That is correct. The file paths show in the .ELF but I cannot find a way to boot them other then selecting them directly which only shows the title then goes blank or crashes.

Spoiler: CODE

Ah, Didn't know that never tried PS2 emulators before. Would have used a TEST/DEBUGGER but I don't have one at this time.

How would I go about booting the ELF with the disk mounted? Thanks.

EDIT: Seem's there might be a debug menu in the MARVEL one and the naming seems it needs a keyboard.

 

del

 

Not the one from Wombat is it? Haha I was just a few days late asking for that one! lmao. When I load this disk it instantly boots to NFS:MW but there's a slight delay when it goes black so I wonder if that's where you get to boot them but I tried hitting all sorts of key combos but nothing worked so far.

I've just replied to your PM regarding this also.

 

del

 

I thought that too till I saw the files in the .ELF/Boot file.

 

Seems like this demo uses external IRX/IOP/MODULES files and folders, that usually located in the root of the disk. Not only in the "DEMOS" folder. I've tried to rebuild ISO with no positive results, pcsx2 says that can't find some system files and it's failed to start. For example typical demo disk has that structure:

Code:

root
FILLER.PAD
SCED_544.04 << general executable (demos should run through it)
SYSTEM.CNF
├───SCE_DD << general system folder
├───SCEE_DD << general system folder
├───BESCES54.219 << demo build
├───BIONICLE << demo build
├───DEMOS
│   └───FIFA07 << demo build
├───LEGO_SW << demo build
├───LMADEMO << demo build
├───LSW2 << demo build
├───MADEMAN << demo build
├───PAKS << external files from demo build
├───PES6 << demo build
└───DAH2 << demo build

this fifa demo:

Spoiler

Code:

└───FIFA07
    │   CONFIG.DAT
    │   DEMO_000.00
    │   IOPRP300.IMG
    │   IRXNONET.BIG
    │
    ├───ALOCALE
    │
    └───DATA
        │
        ├───AUDIO
        │
        ├───CMN
        │   │
        │   ├───BE
        │   │
        │   ├───CLRBARS
        │   │
        │   └───FE
        │
        ├───GUI
        │
        └───INPUT

can directly use the files from general system folders in order to work correctly. This demo isn't standalone.

Spoiler

Code:

SCE_DD
│   SCE_DD.ELF
│
└───IRX
        CDVDSTM.IRX
        IOPRP300.IMG
        LIBSD.IRX
        PADMAN.IRX
        SDRDRV.IRX
        SIO2MAN.IRX

SCEE_DD
│   CDVDSTM.IRX
│   CONFIG.TXT
│   IOPRP270.IMG
│   IOPRP271.IMG
│   IOPRP280.IMG
│   IOPRP300.IMG
│   IOPRP310.IMG
│   LIBSD.IRX
│   OPSM.PSS
│   PADMAN.IRX
│   SCEE_DD.ELF
│   SDRDRV.IRX
│   SIO2MAN.IRX
│   STREAM.IRX
│
└───MEMCARD
    │   MCDATA.PAK
    │   MEMCARD.DDP
    │   MEMCARD.ELF
    │   WASDATA.PAK
    │
    └───MODULES
            IOPRP271.IMG
            LIBSD.IRX
            MCMAN.IRX
            MCSERV.IRX
            PADMAN.IRX
            SDRDRV.IRX
            SIO2MAN.IRX
            STREAM.IRX

So, without system files demo will not work. LBA isn't so important as this. I could be wrong, it's my suggestion.

 

A modded console should also be able to boot it, if you have one.

It has been a very long time since I touched PCSX2, but there should be an option to select the .iso file under the plugins drop-down menu. You just need to select your disc image and then boot the ELF in the way that you are currently doing.

 

This is along the lines of what @TheGTAddict was saying. It also seems some of the files may be bad so he's having a look when he has time. That SCE_DD folder does exist but it only boots into NFS:MW nothing else. Yet the demo's are again brought up there but it seems to be a copy of the other file not checked sizes though as I am rushing this reply.

I sadly only have a normal PS2 at this stage but then again I can't even use that as no TV. I suck Just got this rubbish laptop currently.

EDIT: The .ELF under SCE_DD is an exact file match sadly.