Re: Duplicates
Philips codes for example are used on my Marantz CD player
Philips owned Marantz at one point, but in any case the RC-5 protocol used by Philips only allowed for 32 different categories of controller (TV, DVD, CD, etc). NEC's protocol includes a manufacturer ID to get round this.
And, incidentally, Arcam is now ultimately owned by Samsung.
I think the XP people call it "technical debt".