Depends on how big it is. A CD-R and CD-RW can hold around 700 MB, and a DVD can hold around 2 GB.
No.
Dvd+r
If you are using the World of Warcraft: The Burning Crusade cd to install the game, then yes, it needs the internet as it will have to go online and update the game client to the very latest version of the game. This is done automatically.
Use cd-burning software compatible with the .kar extension, to burn an audio cd. If this software is not availible, use a file-conversion program to convert it to another format (.wma, .mp3, .ogg or .m4a are more conventional formats), and then use a cd-burning program to burn an audio cd. Note that a cd-burner and software are required.
Burning of a CD means that you laser write data onto the silver surface of the CD.
To make CDs at home, you will need a computer with a CD burner, blank CDs, and CD burning software. First, insert a blank CD into the CD burner. Open the CD burning software on your computer and follow the instructions to select the files you want to burn onto the CD. Once you have selected the files, click the "Burn" button to start the burning process. Wait for the burning process to complete, and then eject the CD from the burner. Your homemade CD is now ready to use.
Once a CD key (code) is used for an account, it can not be used by any other account. You must use the code that came with the game.
There is no difference- writing files to a CD involves using a LASER to leave marks on the CD that can be re-interpreted later on by another CD player. Because of the fact a laser is used, the term 'burning' has come into common use.
To combine two CD's together, you can create a new compilation CD by transferring the songs from both CDs onto a computer, arranging the tracks in the desired order, and then burning them onto a blank CD. You can use CD burning software to help with this process.
Sony CD-R Music Cd's works great when you want to download MP3 music to listen to in your car or home stereo.
Unless you have a rewritable CD, then no, you can't.
An ISO file is an image of a CD. You can use CD burning tools (Nero is one of them, and there are some freeware ones out there) to write that image to a blank CD.