Ashanta

Hi, A few days ago, I burned an iso DVD with the latest version of Imgburn: a Vista installation DVD. I could upgraded my Vista with the burned DVD. Yesterday, I noticed that Vista found an empty DVD. So, I decided to again, read with Imgburn and this one, said that the DVD is not empty. I was shocked as Vista said that the DVD was empty and on the contrary, for Imgburn is not empty. Could you give me more details, please ? I don't understand what's going on. Thanks in advance !