Just inserted a new Verbatim DVD+R DL into my dvd drive then windows automatically opened to show me what's inside the disc, it was empty, I left it in there for a few hours since I was downloading something I wanted to burn, launched Imgburn and then it said Disc not empty, I opened the disc again inside My Computer and I found a folder called System Volume Information and there was a file in there called IndexerVolumeGuid. I don't understand what just happened? I burned discs like this a ton of times before and this never happened, why did windows automatically burned a folder into it without asking me? How can I fix it? Also in My Computer under how much space is left in the disc it says UDF, this never happened before, help me!