Every so often I accidentally rip to Video-Files or have a DL iso without an MDS (layer break info file). I use imgburn to burn DL and noticed that imgburn does not have an option to insert layer break in DL isos before burning. Does that mean that DL isos already contain the info for a proper layer break or imgburn makes the best guess automatically? As of now I have always believed that in order to properly do a DL backup the best way is to use DVDDecrypter in 'READ' mode which outputs an iso and mds. Is there a better method. Any help much appreciated.