Thankyou to all for the information!
Yes, that's the magazine. What do you mean with "try patching that"? Do you mean to skip them? I told I actually can use the menu (demos, videos and credits sections, you know, what I cannot do is to play the demos I have chosen from the menu, and neither the videos).Is the PS2 Magazine the "Official PlayStation 2 Magazine?" If it is there are usually movies at the beginning in *.pss format so you might want to try patching for that.