All the files in the message have a .sfk file extension. This is probably the backup files of soundforge vroom posted about. If these are actually Audio files the extension needs to be one Nero recognizes like .wav. I don't know if you can just change the extension or need to convert. Most likely they are text files with information about the song on that track.
One other thing is Title one 40 minutes in legnth ?
Yes i see what you both mean, but even though i delete the title one, 40 minutes, from the folder, or when added,( attached is folder open,) that message "one or more files could not be added to the compilation" still appears. The added files still burn OK to CD and play OK.