Yes they will
Yes. only HDDVDs play on HDDVD players. Even if you could play HDDVDs on standard sets, the picture would be the same as a regular DVD. This is because all standard sets display only one resolution of 480i.
Yes, all Blu-Ray players play DVDs and even music CDs
Yes, Sony invented the specifications for Compact Discs and these are applied as a standard worldwide.
yes! I think so!-Awesome
No and HD DVDs have been permanently discontinued
It's possible, since some older DVD players will only play DVD+R disks.
Yes, all blu-ray players can play standard DVDs.
DVD players cannot play Bluray discs. The lasers and the data storage are different so no data can be read from a Bluray disc in a DVD drive. That is the case whether or not there is any up-scaling available in the player. Bluray players on the other hand are quite happy to play DVDs as well as Bluray discs.
No, you cannot play Wii disks on a computer. Wii disks will only work in a Wii or Wii U console.
It's possible since some of the older DVD players would only play DVD+R disks.
For both American football and standard football (soccer) the standard amount of players allowed for each team on the field is 11. When players are limited in American football you will see 8 man football.
Yes, Blu-Ray players play DVDs