I found a way to bypass the DRM check of retail demos by dropping the files in PS3_GAME and loading it as a Blu-ray disc.
However, I can't get the game to start; instead I get kicked back to the XMB with "An error occurred during the start operation (80010009)." I created a valid PS3_DISC.SFB and even included PS3_UPDATE, still no luck.
The EBOOT can't be started, so it's most likely encrypted. Please don't bash me if this is a "duh" post, I'm just getting started with the PS3 scene.
Is there any way to launch the game? I read and contributed to the EBOOT decryption thread but there are no decrypted links yet for some reason. Would a decrypted EBOOT work in this case? Thanks for the help.