PlayStation 2 consoles are region locked and will only play games with a matching region code. A console's region can be identified by the final digit in it's model number.
0,3 - NTSC:J - Japan, Asia
1 - NTSC:U/C - North America
2 - PAL - Europe, Oceania
Similarly, DVD movie playback is also region locked, following standard DVD region codes.
On July 16, 2002 a class action lawsuit was filed against Sony Computer Entertainment in the Superior Court of California, County of San Mateo. The lawsuit addressed consumer reports of inappropriate "no disc" error messages and other problems associated with playing DVDs and CDs on the PlayStation 2.
Sony settled the lawsuit by compensating the affected gamers with $25 USD, a free game from a specified list, and reduced cost for repair or replacement at SCEA’s discretion.