I wanted to create a back up disk so i used Dell Back up and recovery option from My Dell. 11.88Gb was to be used so it required 3 Dvds(4.7gb). After writing the 1st DVD, during the verification part, the disk was ejected and the screen showed the error message-"an error occurred" at the base. I presume there are some issues with the software. I can't continue the back up from that part. 

System details- Dell Inspiron 14 3421, win 8.1.