Well if you like to split your games with other people over items such as the Call of Duty 4 Map Pack, Echo Chrome any other paid item from PSN store, your going to be in for a shock as Sony has taken the liberty of wiping all the PSN game shares from PS3 owners hard drives.
xx3lit3xx contacted Sony about this issue, and Sony Customer support said that "they are scanning PSN ids" and people who shared a file (Sony sees this as people leeching off others and getting content for free) "will "have that file removed".
Sony Customer support also said that if you violate this policy more than 3 times that they would ban you from the Playstation Network, hence you won't be able to play online or access the PSN store.
However we are still puzzled as it says in the EULA that you can install content off of PSN on up to 5 PS3's. But the EULA also states they can change the policy at any time.
We will keep you updated on this issue and let you know if any workarounds are possible.
Taken From http://www.ps3hax.net/announcement/4...mesharing.html