For the best experience and compatibility with modern PS3 setups, look for versions verified on community databases like PSX-Place or official game wikis. Blur (PS3) : Amazon.co.uk
If you want, I can:
Sites like Vimm’s Lair or DLPSGame often host game dumps, though they frequently provide folder/ISO formats rather than PKGs. Installation Guide Installing PKG files varies depending on your platform: On a Jailbroken PS3 (HEN/CFW): download blur ps3 pkg top