They're the same thing.
If you mean either DVD-R or DVD+R then most optical devices these days recognise and read both. Your burner too.
Best to check the specification before committing however.
Dvd-r or DVD+r are the most common types of dvds you can use to burn your own videos onto, you can also use a dvdrw which is a rewritable DVD, a dvdr usually says it can hold 4.7gbs of data, but in reallity it only holds just about 4.5gbs after formatting, most ripping software will also rip a dual layer DVD to a compressed rate of about 4.36gbs, so as to accommodate for the finished files to be able to fit on a dvdr, the best dvdr for me is a DVD-r, minus r dvds burn and work better in standalone DVD players as well as in computers, and most DVD burners these days are fully compatible with them, so your best bet is to get yourself some DVD-r's and start the burning, have fun.
You can't, but you can use Netflix if you have an account.
The drives contained in a HDD DVD recorder are standard hard drives, though you will have to remove it from the recorder and reformat it. This will likely make it unusable in the DVDR HDD.
Wii Fit, definitely
DVD
No, the Nintendo Wii U cannot read DVDs. You can use other applications such as Netflix to watch movies though
It depends how you are going to use it. To take out screws is fine but not to beat it or some other use.
Yes. It does but doesn't make a difference so you should just use the wii remote.
no you cant. i have wii and i tried. you should buy a point wii card from an electronics shop. or use MasterCard or visa.
That is allowed.
no you can not do that. if your talking about posting gameplay, use a capture card. *third edit srry* another way is plug a dvd recorder into your wii
it depends on the brightness and whats connected to it eg wii DVD player etc