The blue disks were a format of disks that sony used in the early ps2 era. They were cd based rather than dvd based format. The blue disks did have a blue back, which is what gave them their name. Game companies stopped using them when playstations started having troubles playing them. the problems tarts with the disk it self... its rubish and stops playing after some time. Thats why companies stoped using them
Exactly! I try Street Fighter EX3 on it. and it won't read the disc. then, i pop in art of fighting anthology as you can see on the pics, and it work because it's a DVD ROM.