You can burn ps2 isos with ImgBurn but without a modchip you wont be able to play it in your ps2. You will need to buy a Swap Magic disk if you dont want modchips installed to play backup copies of ps2 games.
I think you may have gotten the worng idea. Swapmagic is a boot disk to load ps2 games that you burn onto a DVD-R. video showing how swapmagic works. http://www.youtube.com/watch?v=bBsqY8-eors
i heard if u hotswap with dvd decrypter like you do xbox with wx ripper the will play with no mods but i have never tryed it
i take that back i have tryed it but i have no means of burning it to a disc at this time but if you put a 4.7gb dvd in then swap it without it knowing you get a 4.7gb image