Legally, players must dump the game data from their own physical disc into an ISO or folder format.
You will need the game disc image in a decrypted folder structure or .ISO format. The safest legal method is to rip your own physical PS3 game disc using a compatible Blu-ray drive.
This guide covers everything you need to know about setting up the game safely, optimizing performance, and understanding what makes this expansion a standout entry in the franchise. The Reality of Sengoku Basara 3 Utage on PC