Have a slim PS2? You can create your own sensor blocking tools using a straw, cardboard, and some paper. By blocking the sensors on the PS2 slim, you will be able to play backed up games using Swap Magic.
What is Swap Magic? Swap Magic is a swap disc that your playstation 2 reads, and it tricks your ps2 into being able to play backed up copied games.
Where can you buy Swap Magic? Try http://www.estarland.com. If you have a fat ps2, you will need to get Swap Magic with slide card. In next few days, I will have a tutorial showing you how to make your own slide card. Muahaha.
See youtube video below, it does a great job showing you how to make your own sensor blocking tools for the playstation 2 slim to make it work properly with Swap Magic.