Ps3 – How to delete a user account from the PlayStation 3

The answer from Simon is correct, however, to counter the non-transferability of many online consumables, one typically receives five licenses for each purchase. This is useful (and I have verified it by doing this) if you have a family where each person has their own PSN account, on the same PS3, downloading the content with your "master" account and then logging in as another user and installing it with their XMB.

Thus, if you wish to also sell your downloadables and have the ability to do so, create your account on the blank PS3 next to your customer's account, download all your business once more, install on their XMB, and then delete your account. No problems.

You will need an account on the PS3 that owns those DLCs in order to be able to play those games/use those DLCs (or download them in the first place if you don't have them locally).

You could contact Sony and ask if they can move over the purchases, but I'm not sure if they do this (they definitely don't change PSN IDs).

The easiest way around this is to simply keep that account on the PSN as a user and just set your PS3 to auto-sign in as the new user. The old user account will exist but will basically only be used to validate your DLC/games, so it really won't clutter up anything unless you change users often.