Will blue-ray discs play on a ps2?
No the PS2 has a DVD Player not a Blue Ray Disc Player
There are a few differences between a DVD player and a Blueray player. For instance, Blueray players and Blueray discs have higher picture definition and quality. The Blueray disc is also capable of holding more information. DVD information is written on the disc with a red laser, which a blue laser is used for Blueray discs. Blueray discs are also studio quality while DVDs are not.