[cctalk] just curious about eproms [was: Help? Programming SCM90448 EPROMs

Just curioius, as a much less techy person, are there sets of eproms that are compatible for reading, but just require a different programming regimen? Could the OP have used a different eprom that is easier to program? If not, is the limitation pinout, so a header swapping pins could let a different eprom be used? <pre>--Carey</pre>