Digital BW, The Print

A big paper retailer said HP is the only company selling HPR in sheets
(tho its still available as HPR in rolls from that retailer and
elsewhere).

1) do you think that's true?

2) which HP sheet paper is the same as HPR? Which HP product name?

3) Side issue: do you prefer HPR to Entrada, and why?  

HPR does shed coating in printers and I don't think Entrada does, but
it may be that HPR has more Dmax (I don't measure so I don't know).