PSN PSone classics DATA.PSAR
Posted: Fri Feb 24, 2012 8:13 pm
Okay, so this has been a theory that I've had for a long time and it has slowly been driving me insane the more I think about as the years go by.
I’ve been wondering if it is possible to extract a working PS1 ISO from a legit PSone classic downloaded from PSN. A while back I tried to look into this myself so I transferred one of my PS1 games from my PS3 to my PSP and extracted the eboot.pbp in my PC using PBP Unpacker.
Now before I continue I would like to make one thing clear. The PS3 stores its PSone classics the same way as the PSP, well for the most part that is. Instead of just having an eboot.pbp the PS3 has an eboot.bin, which houses the PSP eboot.pbp along with the virtual manual and one other file that I believe tells the PS3 how to boot into the eboot.pbp. When transferred over to the PSP it just copy’s the eboot.pbp over.
Now onto the unpacked eboot. When I extracted it I looked for the largest file since that would most likely be housing the ISO. The file DATA.psar was the largest (later on I found out that this is a common file to have in a eboot.pbp). I put the Data.psar into a hex editor and found proof in the header that it must be housing the ISO.
(img of the header)
“PSISOIMG” which most likely stand for “Playstation ISO Image”. Sadly I never got any farther than that. From what I heard no one has ever successfully done this. Though I don’t think anyone has ever felt the need to seriously look into this either.
I thought I should finally ask around here if anyone can crack this or at least ask if you can share your two scents about it. Hopefully then I can cure my two year long headache that I’ve had with this.
I’ve been wondering if it is possible to extract a working PS1 ISO from a legit PSone classic downloaded from PSN. A while back I tried to look into this myself so I transferred one of my PS1 games from my PS3 to my PSP and extracted the eboot.pbp in my PC using PBP Unpacker.
Now before I continue I would like to make one thing clear. The PS3 stores its PSone classics the same way as the PSP, well for the most part that is. Instead of just having an eboot.pbp the PS3 has an eboot.bin, which houses the PSP eboot.pbp along with the virtual manual and one other file that I believe tells the PS3 how to boot into the eboot.pbp. When transferred over to the PSP it just copy’s the eboot.pbp over.
Now onto the unpacked eboot. When I extracted it I looked for the largest file since that would most likely be housing the ISO. The file DATA.psar was the largest (later on I found out that this is a common file to have in a eboot.pbp). I put the Data.psar into a hex editor and found proof in the header that it must be housing the ISO.
(img of the header)
“PSISOIMG” which most likely stand for “Playstation ISO Image”. Sadly I never got any farther than that. From what I heard no one has ever successfully done this. Though I don’t think anyone has ever felt the need to seriously look into this either.
I thought I should finally ask around here if anyone can crack this or at least ask if you can share your two scents about it. Hopefully then I can cure my two year long headache that I’ve had with this.
