diff --git a/Mod-Version-Data-Format.md b/Mod-Version-Data-Format.md
index a92728b..2d20e86 100644
--- a/Mod-Version-Data-Format.md
+++ b/Mod-Version-Data-Format.md
@@ -1,4 +1,8 @@
-The ModVersion file format is a very simple command-based language which is very similar to [YAML](http://www.yaml.org).  There are commands for entering all various kinds of data needed to describe a mod's items and the recipes for those items.  Most commands are optional, and can be entered in any order. Anywhere this isn't true will be called out below.
+The ModVersion file format is a very simple command-based language which is very similar to [YAML](http://www.yaml.org).  There are commands for entering all various kinds of data needed to describe the items and recipes for those items which belong to a specific version of a mod.  Most commands are optional, and can be entered in any order. Anywhere this isn't true will be called out below.
+
+ModVersion files are expected to be named `mod-version.cg` and appear within a directory named according to the specific version it represents (e.g., "6.2.6") which itself appears within a directory for the mod itself.  See [Mod Data Format](https://github.com/andrewminer/crafting-guide/wiki/Mod-Data-Format) for further details.
+
+Each mod version directory should also contain an `images` subdirectory which contains an image file for each item described by the mod version.  These images may be obtained as described in [Adding Support for a New Mod](https://github.com/andrewminer/crafting-guide/wiki/Adding-support-for-a-new-Mod).
 
 ## Example