Xoj on 04 July 2009
can be a corrupt install.
delete the installation and try again.
or the disc may be dirty.
worse case scenario would be the lens are about to die, but since it only happens with dual layer msg4 disc and that game it's installed.
either way if dies, lens are easy to fix, u don't have to take it for sony for repairs, but it's recommended because they fix it, unless the service where you take it give you a warranty.
