> If you tell us the addresses of the first 10-or-so bad blocks, we
> could set up a laptop in the same way and try to reproduce. You can do
> this by booting with the game-key-up cheat code
> (http://wiki.laptop.org/go/Cheat_codes) and then using the arrow keys
> to move to the first red block. When you get there it will say
> something like "28f Marked bad in Bad Block Table". 28f is the
> address. Then collect addresses of the next 9.

rocker up gave me pong but scan-nand works

bad blocks:
a
1a
2a
3a
4a
... the a's through to fa

then ok for a while

the a's  30a thru to 3ba
the a's  50a thru to 5ca

first bad block thats not 'a' is at 6b1