The download is corrupt. This is caused by your connection, either with your LAN setup or an issue on your ISP's backend. Delete all corrupted data in your 'Game Data Utility' folder on the XMB. Run safe mode options 3 & 4. Power cycle all your network hardware (router and/or modem). Switch to a wired connection from WiFi, if not already doing so. Stop using your ISP's DNS servers and switch to OpenDNS or Google DNS. Try downloading patch again. If issue persists, then contact your ISP.