Instructions
Turn on your PC and Playstation 3.
Open an Internet browser on your PC and confirm that your wireless router is functioning.
Go to the "Settings" page on your PS3.
Click "Network Settings."
Click "Internet Connection Settings."
Click "Easy" from the collection of options.
Click "Wireless."
Click "Scan." This will scan for available wireless networks. Click on the listing for your wireless router.
Enable the sharing function on your PC.
Open "Windows Media Player" and click "Tools", then "Options."
Click "Library", then "Configure Sharing." There will be a series of boxes, some check and some unchecked. Place a check mark in the "Share My Media" box.
Click on your PS3 listing on the device list and choose "Allow." You can now access movies, music and pictures on the PC from your PS3.