I have contacted Macecreaft directly on three occasions since 2010 about this problem and received only empty promises that it would be repaired.
When the versions prior to 2010 listed duplicates, the individual groups of file names were separated by a blank line. This made it possible to write a short script using that file, to handle rules for deleting the (often thousands) of involved dupes. Since 2010, files of the same size have been lumped together with no blank line separating one group of dupes from the next, making it impossible to easily automate the task.
WHEN is this problem going to be fixed???
Since that is my primary use for jv16, unless and until the old output format is restored, I will not be interested in this software. :(