No idea if anyone has posted about this before, but I figured I'd share because I thought it was cool.
So, I was playing around with my PS3 earlier, and had a random thought. I had previously been using a PS2 to USB adapter with my PC to use a Guitar Hero 3 guitar to play GH3 on the PC. It occured to me that the PS3 controllers plug in through USB, so I connected a Sony PS2 controller to the adapter, and plugged it in, and it actually worked. Tomorrow my copy of Guitar Hero World Tour will show up, so I'll try the old PS2 GH3 guitar and see if it works as well. So, for anyone needing extra controllers and has a few PS2 controllers laying around, all you need is a cheap adapter and you're good to go!
So, I was playing around with my PS3 earlier, and had a random thought. I had previously been using a PS2 to USB adapter with my PC to use a Guitar Hero 3 guitar to play GH3 on the PC. It occured to me that the PS3 controllers plug in through USB, so I connected a Sony PS2 controller to the adapter, and plugged it in, and it actually worked. Tomorrow my copy of Guitar Hero World Tour will show up, so I'll try the old PS2 GH3 guitar and see if it works as well. So, for anyone needing extra controllers and has a few PS2 controllers laying around, all you need is a cheap adapter and you're good to go!