Let's find a way to replace Sega-games in SEGA Collections

[archicharmer]

That is what we have:

Game "Sonic Mega Collection +"
Here on game's DVD in mdrom directories there are files.CPT placed here. These files.CPT is (as i think) an encrypted archives.CPT with packed Sega ROMs inside.
Again, as i think these files were encrypt with ccrypt program. If it true, then one can download and install ccrypt and try to unpack one of these files by command line in linux:
ccrypt -d SONIC3.CPT -K >password<
One programmer should try to write a script (something like brute force) which search for password.
It is unknown really it an encrypted cpt-archive or not, a size of password's word and which symbols are used.

Game "SEGA Genesis Collection"
Here on game's DVD in directories A-...-Z there are files.ELF placed here. These files.ELF is a binary files, BUT i think it is some kind of archives.
Original Sony's toolchain (exactly objdump) recognize these elfs and it can to disassemble it. We need to extract files from elfs for replacing Sega-roms! Is it possible?

I asking all the answerings do not write in this thread about pgen or "Let's wait until ragnarok (for example) will build new emul for us". You should to concentrate on targets above.

[maevian]

That is what we have:

Game "Sonic Mega Collection +"
Here on game's DVD in mdrom directories there are files.CPT placed here. These files.CPT is (as i think) an encrypted archives.CPT with packed Sega ROMs inside.
Again, as i think these files were encrypt with ccrypt program. If it true, then one can download and install ccrypt and try to unpack one of these files by command line in linux:
ccrypt -d SONIC3.CPT -K >password<
One programmer should try to write a script (something like brute force) which search for password.
It is unknown really it an encrypted cpt-archive or not, a size of password's word and which symbols are used.

Game "SEGA Genesis Collection"
Here on game's DVD in directories A-...-Z there are files.ELF placed here. These files.ELF is a binary files, BUT i think it is some kind of archives.
Original Sony's toolchain (exactly objdump) recognize these elfs and it can to disassemble it. We need to extract files from elfs for replacing Sega-roms! Is it possible?

I asking all the answerings do not write in this thread about pgen or "Let's wait until ragnarok (for example) will build new emul for us". You should to concentrate on targets above.

that looks actually like a great idea, but frankly i don't see the point cause (I know you asked not to talk about pgen, but thats alsways impossible in a thread about genesis emulation) pgen works just fine.

BUT it would be a great idea to replace the files with a collection like snk arcade classics or metal slug anthology cause there is no neo geo emu yet (we do have a neocd emu, but that isn't the same imo)

[personuser]

that looks actually like a great idea, but frankly i don't see the point cause (I know you asked not to talk about pgen, but thats alsways impossible in a thread about genesis emulation) pgen works just fine.

BUT it would be a great idea to replace the files with a collection like snk arcade classics or metal slug anthology cause there is no neo geo emu yet (we do have a neocd emu, but that isn't the same imo)

Not a bad idea. Also might be cool to edit the capcom arcade games compilations so we could have a CPS1/2 emu.

You could probably also cut out a lot of the bonus content on the discs (mainly Capcom Classics) so there would be space for more games. (of course, this comes at the cost of not being able to access said bonus features, but you could always keep a seperate backup of your Metalslug/Capcom discs for that.)

[archicharmer]

pgen works just fine

Nope, PGen is not ideal SEGA emul. For example, three interesting games - Gargoyles, Soldiers of Fortune, Zombies ate my neighbors - not work. And i hear that not all sound channels are emuled (game atmosphere becomes a little bit different. Man who remember himself in childhood understood me).

But in Sonic Mega Collection Plus Sonic3 for ex. emulated perfect! Sounds and "graphic" as at Sega Mega Drive 2 - i have it, i can to compare)

Programmers and Linux-Mans (i am neither that nor another) - what yours opinion about my ideas? Can you do smth from them?

[kevstah2004]

Tekken 5 also contains emulators, the roms where re-edited, I wanna play Tekken Tag Tourdament - System 12 arcade version

[orcanaoftime]

Nope, PGen is not ideal SEGA emul. For example, three interesting games - Gargoyles, Soldiers of Fortune, Zombies ate my neighbors - not work. And i hear that not all sound channels are emuled (game atmosphere becomes a little bit different. Man who remember himself in childhood understood me).

But in Sonic Mega Collection Plus Sonic3 for ex. emulated perfect! Sounds and "graphic" as at Sega Mega Drive 2 - i have it, i can to compare)

Programmers and Linux-Mans (i am neither that nor another) - what yours opinion about my ideas? Can you do smth from them?

IN PGEN, hold the Select button when loading Zombies Ate My Neighbours to play it.

[NAOMI]

Longwen and I tried it long time ago with Gunstar hero collcetion. We replaced 8 rom and only one could run without sound , others could never show anything but black screen. The comapatibility was terrible and very very few games could run via it. So, it is meaningless at that time. However, I don't know about the game you talked about. Maybe the compatibility is improved, or maybe not.

[archicharmer]

NAOMI, let's consider PS2 Game "Sega Ages 2500 Series Vol. 25 - Gunstar Heroes". I downloaded this game and here the files on the disc:

Modules (directory. No matter that inside)
DATA.CCF
MODULES.CCF
SLPM_627.12 (elf)
and of course SYSTEM.CNF

I think, if sega.rom really exist, it might be in DATA.CCF file.
What program will open this DATA.CCF file?
This archive (if it's archive) will not be opened by Wii ccf-tools

[NAOMI]

If you don't know how to debug PS2 games with assemble language, just give it up. The ROMs in "Sega Ages 2500 Series Vol. 25 - Gunstar Heroes" are all zipped by LZSS or something else. You could not replace it just using some tools already existed.

[archicharmer]

Just imagine: original user seeing this theme, maybe, with hope that he can replace sega-games. He read all posts and saw:

If you don't know how to debug PS2 games with assemble language, just give it up. You are stupid stub and you can't do anything

Do not tell me that all these is SO hard. We need to write instruction which can do anyone advanced user.

You do tell me how did you replace rom from this game!) Step by step, please.