Need DVD-R recovory tools or disk checking.

[nec207]

So for past month I have been burning files to disk and it works!! Now out of no where after the last burning it does not show any files or folders on the disk none . My take on it some thimg gone wrong it deleted every thing or the files are there but path is gone or files are there but it cannot see it or the disk got damage .

So I need a recovory tools to recover it or repair the disk if the disk got damage some how.

Some how I think it cannot see the files on the disk.