Instructions
Launch Windows Media Player 11 on your home computer.
Click the "Library" menu and select the "Media Sharing" option.
Click the box next to "Share Media" so that it is checked.
Check the box next to the "PlayStation 3" option and then select "Allow."
Confirm your selection by clocking the "OK" button.
Turn on your PS3 and and navigate to the "Music," "Video" or "Photo" options. Underneath either of these categories is the "Search for Media Servers" option. Select it and then open the "DLNA Media Server" once it is found. You can now access the content on your computer through through this server.