Whenever I insert a blank DVD or CD to burn files to it using Brasero Disk Burner, the process goes very well until the burning is complete. After that, I am confronted with a error message:
Please eject the disk from "Slimtype DVD A DS8A5S" manually. The disk could not be ejected though it needs to be removed for the current operation to continue.
When I eject the disk, it shows the burning is complete, but the next time I insert the disk, it cannot be read. It is neither read by Ubuntu or by Windows OS. If I try to create bootable DVDs, the computer cannot boot from the DVD.