We can burn an 8K EPROM with the data of your choice. Because we have the TMS2564 EPROM as well as the 2764, these are a direct replacement for the mask ROMS in computers. The normal 2764 will not work without rewiring, but the TI 2564 is designed to be a drop-in replacement.
For example, your BASIC ROM in your Commodore 64 (part number 901226-01) has died. Ask us for a 901226-01 replacement and we'll burn an EPROM with the data from an original 901226-01 (which is freely available on the internet). To fit it simply bend the top four pins (two on each side) up, and fit the remaining 24 pins.