- * *pad=*_filename_ when this is given as first argument, the fused
- file is set up as a writable random-access file, where the write
- events are captured appended to the nominated "pad" file. The new
- content is inserted into the fused file but not the original files,
- and fragments are split up and adjusted as needed so as to make the
- write events appear as insertions inteo the fused file.
-