To be able to provide a linear sequential presentation of the DTB, the order of the smil files (if more than one) must be known. For this purpose, in Daisy 2.02, the master.smil file is used. This document contains the SMIL file order.
[...]
<ref src="dtb_1.smil" title="Title" id="smil1" />
<ref src="dtb_2.smil" title="Chapter 1" id="smil2" />
<ref src="dtb_3.smil" title="Chapter 2" id="smil3" />
[...]
master.smil file is not present for some reason, it is actually possible to derive the same information from the ncc.html file, see below.