Burning Files

1. when I have made a burn folder and dragged files over to that folder it does not move the entire file over into the new folder.

2. If I have a blank DVD in the drive and I then click onto burn in a burn folder it does not recognize that there is a disk in the drive. I have to eject the cd while the warning diologue is open and reinsert the disk for it to recognie and burn the disk.