I recently had to reformat my PC, and copied all of my files that I needed to keep onto DVD-Rs through windows. The DVDs showed as burned, and retained the files when I checked them again before reformatting. Now that I’ve reformatted, they’re read as having nothing on them (though they have visible burn content on the underside).
The only thing I can think of is maybe they didn’t finalize, as I can’t remember if they did or not; or that the DVD Burner (which is showing as a SH202G from Samsung) doesn’t have the proper driver to read them, but I haven’t found any help from Samsung (not even an e-mail response to a few support queries).
Any ideas on how or if they’re recoverable?