It was Panasonic's first high-end DVD player, released about 3 years ago, which is one reason why you're not finding much current discussion about them (the other reason is that they cost around $2K). I doubt you could find one for sale today, except maybe on the used market. The RP-82 is a much later generation of player.
There was a later H2000 model, but after that I think Panasonic stopped making "high end" models.