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Deleted Infamous from the wrong folder
Do you still have the option to delete the game data via the XMB?
Find the "Game Data Utility" folder under "Games" in the Cross Media Bar.
Find the game data you wish to delete in the "Game Data Utility" and highlight it.
Press the "Triangle" button to open up the options menu.
Select and press "Delete." Select "Yes" to confirm the deletion, and the game data will be removed from the hard drive.
Read more: How to Delete & Install Game Data on a PS3 Hard Drive | eHow.com http://www.ehow.com/how_5784067_dele...#ixzz1Da4HbIFT
Unfortunately I don't have the option to delete via XMB anymore...
I'm formatting the PS3 internal HDD right now to see if it changes anything.