First, be sure to check the Samsung website, or possibly Cyberlink, and see if they have an update for the Power2Go program version you have installed.. Sometimes, there are "fixes" release that take care of your problem.
On the other hand, many of us use a different burning program which works fine for general burning of DVD's and CD's.. See the two below which work fine here. (IMGBurn works great for me.):
Hope this helps.
hi just upgraded to samsung laptop 64 bit that came with power 2 go preinstalled i have window 8 home edition the power to go program is not closing[finalising] disks and when i click on the burning tab the closing tab is greyed out but ticked any suggesstions as to how i may fiz program to finalise cds could you kindly send me answers please