No
yes it can play regular movies
No. You can play regular DVDs with a blu-ray player.
Yes, Blu-Ray players can play regular DVDs.
All Blu-Ray players can play DVDs
No. Blu-Rays will only work on a Blu-Ray player, but they can play DVDs as well
Yes
Yes. All players are "backward compatible", so a 3D Blu-Ray player can play regular Blu-Ray, regular DVDs and even CDs.
Blu-Ray players can also play regular DVDs and music CDs
Yes, blue-ray players can play regular DVDs. However, regular DVD players cannot play Blue-ray DVDs.
Yes, Blu Ray dvd players do play regular dvds, but, unfortunately, if you want HD then you cannot play it on the Blu Ray. So you can be limited on choices.
Yes, it does