Alright, as usual I have quite a few questions. Firstly: If I had a modchip in my ps1, could I download ISOs off the internet (probably this site,) and burn them onto a disc, then play them on my ps1? If not, what are the use of modchips?

Second question: How difficult is it to put one in? Do I need to solder, or can I just tape two bare wires together? Or better yet, just put it in ?

Third: Where can I buy a modchip?