> >There is no standard format; each manufacturer seems to use a different
> >protocol.  I have found that just timing each transition of the
>
> Most manufacturers use one of three standards:
[snip]

Don't forget the Philips RC5 code.  It's becoming more popular among
hi-fi equipment, and (AFAIK) it's the only one with an extensive set
of pre-defined commands for brand-to-brand uniformity.