Burn under 8x in Nero

Okay, there are times when I just want to burn at 2x. If I put in a 2x CDRW my Liteon 24x recognises this and burns at 2x. So why can’t I choose 2x in any software?

Because you writer has 2x only for low-speed cd-rw and 4x only for cd-rw (low-speed and high-speed).

For cd-r, only 8x and higher is possible.