DLC Decryption

[Hykem]

@onelight:
Could you please test if this game still has the ERROR after pressing the X button to exit the SAVEDATA dialog? Thanks!
I'm still researching the DLC. It appears that the problem is not the decryption, but the game itself that doesn't want to open the files. :S

Test jpcsp 3412 "the ERROR after pressing the X button to exit the SAVEDATA dialog" has been fix.
I thank you are right. The game itself doesn't want to open the DLC files, but I don't why.
but the way ,I try my way to use jpcsp open the DLC files,but failed
I had try replace all the MOV**_D.EDAT files to some 0 byte files in my PSP , what interesting is, the PSP use the 0 byte as kiss DLC . It adding the kiss after you confess to one of the members as you use the real DLC but it would not play the kiss movie as it is 0 byte.( I hope you know what i say)

Thanks for testing!
Yes, I understand. I still have to investigate further, but it seems the game is already expecting for the files to be loaded in a certain way. Also, the DLCIDX.EDAT file seems to be what tells the game which data needs to be decrypted. Perhaps changing the DLCIDX.EDAT file contents could make the PSP report information or an error...