However, I found these old dreamcast games (MK Gold and NBA Showtime) that I am having a pain taking the writing off. I believe it is because (1) the games had that Sharpie written on them for so long and (2) these games have that textured surface.
I have tried rubbing alcohol, GooGone. And I tried using a Dry Eraser Marker over the Sharpie marks and erasing it. No luck. It went away a little bit, but it is still noticeable.
I don't want to continue doing this because eventually I am just going to ruin the game art on the CD (GD-R actually

Anyone have any other tricks?