rsync - Jun 2010 - How can I make rsync not overwrite files that has not changed?

Sorry for asking this but I find the manpage to be a little confusing
on this. I want rsync  to only replace files that has acctually a
different content, it should completely ignore any timestamps on
files..

How can I make it behave like that?

> Subject: How can I make rsync not overwrite files that has 
> not changed?
> 
> Sorry for asking this but I find the manpage to be a little 
> confusing on this. I want rsync  to only replace files that 
> has acctually a different content, it should completely 
> ignore any timestamps on files.
 -c, --checksum              skip based on checksum, not mod-time & size
--
Bob Bagwill