Have been burning cd's no problum with 8-5 aslo x1, now have just got x2 i found  to export audio stereo/ 441/16bit/wave..then export, so far so good, plays ok in wmp, now if I want to burn it to cd, i call up ck cd burner, load in the track, put cd in. press burn ....it wont burn just get error 0x08004040210 from ck publisher....... not sure where the problum ...anyone ...HELP!      

http://www.filehippo.com/download_cdburnerxp/

just use that if your in a hurry, obv. you need to give it the 2 channel 44.1 mastered track

Are you sure its a blank CD? 

yeah, they are blank cd's , I have even tryed burning the x2 tracks on another pc, still won't burn

Check the CD player in Windows Device Manager. Maybe Windows isn't recognizing it or there's a driver issue. Did you update Windows also? 

Was this a clean install of X2 or did u just update your X1 to X2?