Gaming help with cso files

[don_eno]

my psp doesn't play cso files but play iso files fine. how can i make cso files iso files or a way to play cso files with my psp

 

[luke_c]

What do you mean "It doesn't play them" A little bit more description would help to solve the problem, are you getting a error or what?

 

[Uiaad]

It would also help if you told us what psp your using ( 1000, 2000, 3000 ) and what CFW your using

 

[Lelouch]

Could also be a bad dump, corrupt download or something. Did you compress the iso's yourself?

 

[don_eno]

i have a psp 1000 and when i try to load a cso file it says the game could not be started (80020148). the guy who sold this to me said that it can only play iso files

 

[ProtoKun7]

Which CFW are you running? Most if not all CFWs will run both .iso and .cso files. You can check the firmware version in System Information.

 

[don_eno]

Which CFW are you running? Most if not all CFWs will run both .iso and .cso files. You can check the firmware version in System Information.

5.50 gen-c(full) nickname psp321

 

[ProtoKun7]

Which CFW are you running? Most if not all CFWs will run both .iso and .cso files. You can check the firmware version in System Information.

5.50 gen-c(full) nickname psp321

Haha, you don't need to tell us your nickname. That's temporary CFW, so you're using a PSP 2000 or 3000?

 

[don_eno]

Which CFW are you running? Most if not all CFWs will run both .iso and .cso files. You can check the firmware version in System Information.

5.50 gen-c(full) nickname psp321

Haha, you don't need to tell us your nickname. That's temporary CFW, so you're using a PSP 2000 or 3000?

i'm sure that its not a 3000 because i had one so propably a 2000

 

[Occult Tech]

Download YACC and turn convert them from CSO to ISO, and see if they run.

 

[chriso]

It's one of the following -

1. Either the .cso is corrupt or the rip by the uploader was bad and you need to download again.

2. Some .iso's don't run properly as compressed .cso's so it needs to be converted back to .iso through a program such as PSP Compressor.

3. Change the driver mode on you psp by hitting the select button and choose between m33, Sony NP9550, or OE isofs.

4. In a rare case, your firmware might've been corrupt while updating - if all of the above fail, try updating your firmware.

 

[don_eno]

Download YACC and turn convert them from CSO to ISO, and see if they run.

it worked

 

[don_eno]

thank you all for your help.
one last question the guy who sold this to me said that i wont be able to play some of the newest games with this firmare but if i upgrade it i can't play some of the old games. is it true?

 

[Tear]

Someone correct me if I'm wrong, but the last custom firmware by gen has an internal decrypter, and it may occur some errors with old games.
I tried to play Riviera on my PSP 3000 with gen-c and it didn't work until I patch it with eboot exchanger v2.8