region-x demo

[dingdong]

i got a demo of region x of a ps2 mag which works for 5 times then it tells you that your trial is over and to purchase the full version.can someone tell me how the disc can tell it has been used 5 times and how i could get my ps2 to let me use the demo again.i erased the file left on the ps2 memory card but this does not work.