So, I was having Sega CD problems (constant lockups, even on cart games), and it was directly related to the dirty contacts on the Genesis' expansion connector.
So, eraser heads wouldn't work, and as a last STUPID move, I used a sanding block. Now, the contacts are copper colored instead of the tin plating. While the lockups are gone, I fear it may rust.
Will it rust? And how can I restore the tin plating?
(Yes, I worry alot about little things)