I have a DVD that has some data on it(about 7 MB). I want to add further data to it but Ubuntu won't allow it. It shows 0 bytes used and 0 bytes available when I go into properties of the DVD and I am not able to burn additional data to it. The error message shown is insufficient disk space. The data on the disk was earlier written using Windows, could that be a problem?
I have about 10 more disks that have negligible data on them and want to use them for storing other data. What should I do?