Reply to note from "Paul Breeze"(Redacted sender "paul.breeze" for DMARC) Wed, 28 Aug 2019 18:55:06 +0100 Paul, > Any way of forcing them into simple Arabic numerical order. Yes: one. CHAIN sorts the component files in alphabetical order (this is documented, I'm relieved to say). So, to chain numbered filenames in numerical order, you will need to pad the numerical parts of the filenames with leading zeros. In your example: Chapter.01, Chapter.02, ... Chapter.09, ... Chapter.99. As for the need to add a at the end of each chapter before chaining, CHAIN was not designed with MSS in mind but I can easily add this CHAIN as an option. -- Carl Distefano cld@xxxxxxxxxx