Reformatting Mac with downloaded Lion?

Hey!
Is it possible to reinstall Lion like the following?
          Download os x lion from app store
          Burn the .dmg to a disc
          Insert disc into Mac
          Boot, holding down C   (?)
I've got questions.
There are several types of dvd's. One i found is dvd +r, the other one was dvd -r.
Whats the difference?
How do i boot up with the dvd which contains the os x? Holding down C, like the real disc?
My original disc is broken after moving my computer while the disc was spinning. It got scratches from it.
My computer won't boot for some random problems I know.
That's why I will have to know if I'm right in reinstalling the os..

Here's instructions on creating a bootable DVD http://macs.about.com/od/macoperatingsystems/qt/Create-A-Bootable-Copy-Of-Os-X-L ion.htm
From Wikipedia DVD-R http://en.wikipedia.org/wiki/DVD-R and DVD+R http://en.wikipedia.org/wiki/DVD%2BR
Go to the Apple in the upper left corner and select About This Mac, then click on More Info (and then System Report if you are running 10.7), then select Disc Burning from the left hand column of the System Profiler. Most Macs can handle both -R and +R.

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blacksheepfibers wrote:
I updated my mac with os x Lion so that I could accomplish moving my address book from the mac to my new IPad 3G. I also set up an icloud account for this purpose, but I *still* cannot figure out how to move my address book from one computer to the other. When I'm on my mac and try to use bluetooth to export the address book, I'm able to find my ipad but I soon get a message that it does not support the necessary services. I have no idea what's going on and would appreciate any advice. tks in advance, Sarah
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Reformatting Mac with downloaded Lion?

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