"Lou" writes:
Has anyone ever made their own in-flight recorder? I'm curious how
this would be done. I don't think it would be that difficult if you
use a regular cassette in one of those small fire safes. Just
drill a small hole to accomadate the mic wire. But how would you hook
it up to the intercom?

My understanding is that fire safes are designed to protect documents.
They are lined with a chemical which produces water when it is heated,
which stops documents from lighting on fire. Water probably won't do
a lot of good for electronics.

Chris