most of them can be played on a playstation 2
Yes it can be played.
yes
Yes, but you cannot save playstation 1 games on a playstation 2 memory card as they are not compatible.
SIR YES SIR SO the answers yes
No.
yes the PS2 will play select Playstation game titles
Yes.
no
No. You can play Legitimate PS1 games on a chipped PS2, but you cannot play PlayStation 2 Games on a PlayStation 1.
no you can not play a PS2 game in a PS1 console
There should only be 1 disk needed to play a game on PlayStation 1's, PlayStation 2's, PlayStation 3's, and portables versions. Just insert the main gaming disc if there are 2 of them (for some odd reason).
no