how to burn on cd-disc mixdown in format wave 24 bit?
for example if i have ready to rekord mixdown ,i made on cubasesx,i must change
format wave into 16 bits,but i want to burn it in 24 bit?

CD audio can only contain 16bit/44khz audio.

So no matter what the wave is, this is what you will burn if you are making an audio cd to be palyed by audio cd players.

Store the wav's as lossless copies and pray that you'll be able to author DVD-A one day ...