Guitar Hero2-dom, almost

I set an achievable goal for myself on the PS2 game Guitar Hero 2. I was going to achieve a five star rating on all the songs with medium difficulty to unlock one of the bonus guitars. I had finished “Institutionalized – Suicidal Tendancies” with a blazing 97% playing nearly the whole song in a rockin power stance.
(see http://www.guitarherobrokemyknee.com for warnings on the power stance)
I was ONE song away yesterday (and an easy one at that) when I started up the PS2 and it said “creating new save game”. It wiped my entire game card. I get to start all over. Time for some finger stretches!