Tried to remap bad blocks with FaaastPrep
Don't use FaaastPrep. For anything. Just drag it into the trashcan and forget you ever heard its name. Don't let that software ever darken your Miggy's door, ever again.

Use HDToolbox or if you're feeling really daring,
HDInstTools.
Also, update your GVP to the latest version of the ROM. You can usually find these on Ebay, or burn yourself with the code from
here.