One can also purchase (very inexpensively) 32 pin DIP-to-PLCC
adapters to enable one to use the still-abundant 1 and 2 Mbit Flash
chips used on PC motherboards. Many of these things have boot block
protection, another big plus if you're worried about inadvertently
destroying the contents. The adapter allows them to programmed in
your favorite ZIF-equipped programmer, if you don't want to enable in-
circuit programming.
FWIW,
Chuck