Yes you can play regular DVDs in BR players.
Yes, BR recorders are available, but not yet as widely available as regular DVD recorders. To make a BR recorder really useful, one needs to feed it HD source material. Not many people have this ability yet, unless they ere doing HD editing on their computer. Forget about recording HD television programs onto BR discs. It's not going to happen, within the means of most mortals at this time.
Are DVD player/recorders available with Blu-ray?
Thanks for helping this techno-dummy.