again you are totally wrong. the discs burton gives you are to fit burton bindings onto either burton boards or other boards with 4 hole pattens. they don't give you burton discs to use with other bindings you might have or might buy in the future, are you retarded? baseplates are the same? do you think we're stupid? yeah rome baseplates really look like burton baseplates which really look like union baseplates.
and no the discs are not the same, the diameter is different from brand to brand and the teeth don't always match up. try putting a rome disc in a ride binding and let me know how that works out for you.
and you don't need est bindings for the channel, you can mount any burton bindings on channel boards with the disc the boards come with and some other companies (like drake) make a compatible disc for channel boards as well (they have a licensing agreement with burton to do so)
please just stop with the incorrect info, you're not helping anyone.