dell data safe local backup failed to make recovery discs

i just bought a dell studio laptop. i tried to create my recovery discs using Dell Data safe Local Backup 9.4.60. all processes run smoothly till it requests me to insert a blank disc. i inserted a blank DVD+r and it gives me the following message."There is not enough space on your and drive" further says " You can either free up space on you local hardrive, or use a directly attached storage device (key or external HDD to perform this action)" what does this mean, which space is the program referring to for i have lots of space on my hard drive over 400gb. and what do i need to do to overcome this problem and get my recovery discs dont want machine to ever crash and i dont have my insurance. pliz help me thank you alot.