Here's why:
* PS3's internal architecture: The PS3 is designed to read games from its internal hard drive or Blu-ray discs. It does not support playing games directly from external storage devices like flash drives.
* File system incompatibility: The PS3 uses a proprietary file system for game data. Flash drives typically use FAT32 or NTFS, which are not compatible with the PS3's file system.
Possible Alternatives:
1. External hard drive: You can connect an external hard drive to your PS3 and store games on it. You'll need to format the hard drive in the PS3's format using the "System Settings" menu.
2. Game backups: You can create backups of your PS3 game discs to your external hard drive, but it is not legal to play these backups without the original disc.
3. PS Plus: PS Plus subscribers can access a library of PS3 games through the "PS Now" streaming service.
Important Note: Modifying your PS3 to play games from external storage is generally not recommended and can void your warranty.