Index: trunk/ippconfig/megacam_alternate/format.config
===================================================================
--- trunk/ippconfig/megacam_alternate/format.config	(revision 7334)
+++ trunk/ippconfig/megacam_alternate/format.config	(revision 7532)
@@ -3,5 +3,5 @@
 # How to identify this type
 RULE	METADATA
-        RUNID           STR     03BH11
+#        RUNID           STR     03BH11
         DETECTOR        STR     MegaCam
 	SIMPLE		BOOL	TRUE
@@ -23,7 +23,8 @@
 	amplifier	METADATA
 		CELL.TRIMSEC.SOURCE	STR	VALUE
-		CELL.BIASSEC.SOURCE	STR	HEADER
-		CELL.TRIMSEC		STR	[0:0,0:0]
-		CELL.BIASSEC		STR	BIASSEC
+		CELL.BIASSEC.SOURCE	STR	VALUE
+		# CELL.TRIMSEC		STR	[11:2100,1:4644]  # col1 <= 0 -> decrement relative to NAXIS1
+		CELL.TRIMSEC		STR	[10:0,1:0]  # col1 <= 0 -> decrement relative to NAXIS1
+		# CELL.BIASSEC		STR	[1:9,1:4644]  # empty region
 	END
 END