I recently got news that one of my favorite games not only had a DS remake, but it also just recently had a PSP remake (improved upon the DS version). I’m talking about Super Robot Wars Original Generation Saga Masoukishin I – The Lord of Elemental. The original SNES version was my first SRW game. I played it through even without knowing Japanese (I still don’t). I just love it. No other SRW did that for me. I just finished GBA OGs, though, but that was because they were in English. Oh, well...
First and foremost, I’m a total beginner at this. I may have some basic notions about ROM hacking from tutorials online (including those here) and from people some years back, but I have never actually worked on it.
Now, back on topic, while most graphics were easy to find for the DS version, between 02567800 and 025FBD48 in the d_sys.bin file, according to Crystal Tile 2 NDS filesystem browser, for the PSP version it’s been impossible to find anything at all in its USRDIR\SYS.BIN, or in any of the other files, for that matter. Oh, yeah, aside from the “d_”, both ports seem to have the same file structure and names.
For the DS version, in Tile Molester you can just choose (1-dimensional, by the way) the 4bpp linear, reverse-order Codec, play a little bit with Increase/Decrease Width and Byte Back/Forward options to your desire, and in Crystal Tile 2 just GBA 4bpp and its Ctrl/Alt + Left/Right shortcuts to do the same.
Anyways, I just really want someone more knowledgeable to clarify, for example, things about PSP treatment to ISOs and the like. For instance, I don’t know if they are created encrypted or what. I’m not talking about game specific encryption/compression, which should probably come later, but in general. Just started touching those UMDGen tools and similar. Also, if someone who has worked on PSP hacking before, has any tips for basic graphics research, like “try 2-dimensional”, or “try the composite mode and byte back until it works”, something like that. Or something like “Oh, try the EBOOT.BIN file, after you decrypt it, of course.”.
I come to you since there is little to zero help in the Documents section, but I’ve heard of some projects around, which means that someone can perhaps point us in the right direction.
Thanks in advance for your support, and keep it up!