Can DVD-R disks be used to create a boot disk?(linux iso)

As Manoj Sawai Said Yes.

But you may need an exteal Dvd Drive.

Please read the Note at the bottom. For issues reading Newly bued Discs.

You Bu the image on to the disc.

Do the same as you would with the usb Hold Alt or C and wait for the menu to come up and show the disc then boot the live cd and install it from there.

Shouldnt have any further issues after that.

Note: ive read that it may not read the bued DVD to well you may need to buy a portable Dvd drive and install it from that. Read here for more info on that.