Rewrite an HP 41 ROM-module

[D. Raudzus]

I' have ROM-module that I never use.
Is it possible to rewrite it or can
I throw it away?
Thanks for your answer. mail@dieter-raudzus.de

[Steve (Australia)]

In general you can't rewrite it.

But what is it?

And NEVER throw it away. You hear me? :-)