diff --git a/Classic-BlockDB-draft.md b/Classic-BlockDB-draft.md
index 9a0e6c0..c592518 100644
--- a/Classic-BlockDB-draft.md
+++ b/Classic-BlockDB-draft.md
@@ -1,11 +1,11 @@
-The Classic BlockDB format is relatively simple, with the format consisting of a sequence of 16 byte blocks.<br/>
+The Classic BlockDB format is relatively simple, with the format just consisting of a sequence of 16 byte blocks.<br/>
 The blocks are in the order: _BlockDB header_, then _BlockDB metadata_, then a variable number of _BlockDB entry_.
 
 ##### BlockDB header block
 ```
 4  | Format identifier "cbdb"
 1  | Format version, currently '1'
-1  | Years offset (unsigned). Reference point = first second of year (1970 + offset)
+1  | Years offset (unsigned). Reference point = 1st second of year (1970 + offset)
 2  | Width of the map
 2  | Height of the map (vertical)
 2  | Length of the map
@@ -158,7 +158,7 @@ namespace ClassicBlockDB {
 		// bit 0 set: old block is a physics block, not an ext tile.
 		// bit 1 set: new block is a physics block, not an ext tile.
 		
-		// TODO: should we be using uint16 bitflags for context, with 4 bits leftover for the software?
+		// TODO: 12 bits for context, with 4 bits leftover for the software?
 		
 		public const int Size = 16;
 	}