PS3 Cobra changes to add full burned optical media support

DB11574 said:
Do PS2 burned discs work????
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Summary:

  • PS3 games work from CD-R, DVD -/+ R, BD-R, and from DVD DL, and probably BD-RE
  • PS2 games work from CD-R, and DVD -/+ R but only on CECH A,B,C,E models. Other models including all slims are not supported in PS2 case, and this can't be fixed easily.
  • PSX games work from CD-R on any CFW PS3.

DB11574 said:
What good is this forum if no one replies?
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There is nothing to add I think. We all know that well prepared PS3 games work fine, and that PS2 games not work on consoles different than mentioned above using burned media.

Any compatibility reports are highly appreciated, but don't count on too much feedback. For sure is really interesting feature, but not many people are using it in 2017. Still, feel free to help them with your knowledge. :)
 
Is it safe to generate ISOs without PS3_UPDATE folder or PS3UPDAT.PUP (I mean delete either)? I've read in very old threads that I can do it, but I prefer to read updated suggestions.

Thanks
 
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oneohthree said:
Is it safe to generate ISOs without PS3_UPDATE folder or PS3UPDAT.PUP (I mean delete either)? I've read in very old threads that I can do it, but I prefer to read updated suggestions.

Thanks
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In the file PS3_DISC.FSB there is an "hybrid flag" (are named this way internally in the file) that indicates the presence of the dev_bdvd/PS3_UPDATE folder, that "hybrid flags" are just a list of characters... for the update folder is the character "u"

Technically if you want to delete the folder (with the .PUP inside) you should delete the "u" too to mantain sony standards, this is how is made officially, when you mount the game the PS3 searches for the "u" and if its not there then the PS3 doesnt even searches at the update path

With backup managers this doesnt have much importance, you can delete the folder and kept the PS3_DISC.FSB file original with the "u"... games are going to work anyway, but i use to modify the file PS3_DISC.FSB to delete the "u" at the same time i delete the update folder

For games burned to discs im not sure if that "u" could be problematic though, my guess is yes... but maybe is not notable (it could be the kind of internal error the user cant see, and the game boots normally)

http://www.psdevwiki.com/ps3/PS3_DISC.SFB
 
I've not seen issues with removing the PS3_UPDATE Folder in any of the games i've converted or burned. I've also not heard any issues from users of my conversion apps about the removal causing any issues. Hopefully this answer helps :)
 
DB11574 said:
did anyone test burned PS2 games yet? I don't want to try it because I don't want to take the chance of my system locking up. I would have to unplug it to reset it. so Do PS2 burned discs work????
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Yes, I tried it on my Slim 2100 and it doesn't work (as expected). I just got a black screen and had to unplug the console.
 
@sandungas Thanks for clarifying those aspects and pointing me to psdevwiki. It's always good to save some space, and when you get rid of uneeded stuff, better.

@psykosis It's good to know other users didn't have issues with this. Thanks.
 
I was and still am doubting to include the PS3DISC.SFB. Is it really needed? Could it be the reason why burned discs fail to load?
 
I have never really experimented with the tweaking of ps3disc.sfb as it is not really required for iso use so someone else might have better details to give you...

ps3disc.sfb is important because it is the disc structure descriptor used by the system to enable standard & extra features.
It uses flags to activate the disc contents, for example the 'g' flag indicates to the system that it will find a PS3_GAME & a PS3_EXTRA folder, the 'u' flag indicates the presence of the PS3_UPDATE folder.
Note that after modifying the disc contents, the ps3disc.sfb file should actually be tweaked to reflect the modification(s).
For instance, if you decide to remove the whole fw update folder with the pup, you should also edit the sfb file to remove the 'u' flag. Like sandungas already explained, if it can be safely omitted in a iso/JB folder game, it is probably important to do it with a burned disc.
In practice, I think removing the sfb file on a burned disc is a bad idea that would break the disc's features. However it's perfectly safe to try if you wanna be sure... If you do, please report your findings..
 
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Here are my latest and final talk about this method
The best methods are where perfectly work EVERY game even BD DL games (yes i know what files need to be layer0 and layer1)

-Sony Generator 3.0 (Sony official software for master disc creating, yes i know where to put to files to work perfectly every game single BD25 and DL BD 50gb games with the latest games like persona5)
- Make ps3iso 1.98 is the second best software for this but DL games not gonna work!
- the worst what can you use is genps3iso2.0 and multiman i dont know why but there are some games even with Single layer BD games are not working and no DL games works.
 
bguerville said:
Interesting report actually...
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Yes i found also very interesting a little software how can change things when you burn games... but finally every game works perfect now im playing DL game last of us and sl game persona5 i tried to burn 60 games now i know everything... ohh and you can add extra pkg (DLCS fixes, updates to BD so you can install them from BD disc!)
 
I suppose makeps3iso was made to produce iso files that would work with CFW, not really iso files to burn on writable optical media.
So if what you describe is correct, a dev would need to compare the output iso files between makeps3iso & s@ny generator tool in order to modify the makeps3iso source code. The difference between the 2 iso files is probably quite small & I would assume the required modifications would be fairly limited...
Not sure wether someone skilled enough will bother with this though...
The real shame is that afaik the s@ny tool is under license, we cannot link to it or recommend the average user to acquire it illegally...
 
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So... unofficial ps3 iso tools cant create proper iso's for bluray DL burning ?

Good to know, is the first time i read about this problem for makeps3iso reported in such clear way, i think there was people talking about problems with DL in this forum but i had doubts
 
bguerville said:
I suppose makeps3iso was made to produce iso files that would work with CFW, not really iso files to burn on writable optical media.
So if what you describe is correct, a dev would need to compare the output iso files between makeps3iso & s@ny generator tool in order to modify the makeps3iso source code. The difference between the 2 iso files is probably quite small & I would assume the required modifications would be fairly limited...
Not sure wether someone skilled enough will bother with this though...
The real shame is that afaik the s@ny tool is under license, we cannot link to it or recommend the average user to acquire it illegally...
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Exactlly, lol, he pointed at the bug but also to the solution... to compare them :)
But i think the differences are going to be a lot, estwald ignored on purpose some complexities of the sony BD format with the purpose of make it the most simple posible

I bet the problem now is in how the files are spreaded between the 2 layers of the disc... so initially this is the first thing that needs to be "copyed" from the official format
But to find this is needed someone that understands all the sony format, making sense of makeps3iso source code, finding the exact way how are layered the files... and most important... previous overall knowledge of disc formats and iso

Estwald is retired from PS3 so is not worthy to advise him
 
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Estwald was probably right to get rid of the extra complexities added by s@ny, at the time using burned media was not on the cards, the priority was to get isos to work & making a tool sufficiently stable... Mission accomplished..

However, to go back to the changes required by makeps3iso, I am not convinced that it will require so many modifications because if the issue is the spreading of the files, assuming we understand how it's calculated, should not require that much work for someone sufficiently skilled... I could be wrong...
 
Is hard to know but by now i think like you, if the only problem is where are located the files maybe there is no need to understand sony format... just by looking at how the tool orders them maybe could be deduced
If that's all we are lucky because looks mostlly related in how the TOC is made (im not sure how the TOC works in PS3 ISO though)

Im thinking maybe there is a (dirty) easy way to do it by modifying the TOC at the end of the ISO creation process
I say "dirty" because is better to make the TOC calculations in between while TOC is created, but for this is needed to understand well makeps3iso code

The "dirty" way could be an added function at the end of makeps3iso (after the TOC has been generated) that makes some calculations of sizes and decides wich files needs to be moved to layer 2
Or an additional app that needs to be applyed to the created ISO and is going to rebuild the TOC
 
@borzas2010
Have you tried at all to compare a game iso file produced with makeps3iso with the same game iso but made by the official s@ny tool?
If you ever do, try comparing the TOCs & files location...
 
Yes i tried to comparing but useless because You put files with generator3 where you want and yes every game files need to put different place especially for DL gsmes, (the Last of us layer1 require different files types than b2s or killzone3 or mgs4 or gow or ffXIII) A certain datas cannot be on layer1 sadly every DL game have different method so no i dont think a software like makeps3iso can make automaticly calculate like that ever ) most of the sl game is work with makeps3iso but not all, i dont use it anymore i only use that generator 3 and no no need to make dummy.
 
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