diff --git a/bin/sde-create-iso b/bin/sde-create-iso
index e3b5ab3..155d0ae 100644
--- a/bin/sde-create-iso
+++ b/bin/sde-create-iso
@@ -57,12 +57,12 @@ while [ $# -gt 0 ]; do
                         create_usage
                         exit 0 ;;
 
-                -s)	media_size="$2" ; shift;;
-                -f)	media_format="$2" ; shift;;
-                -p)	name="$2" ; shift;;
-                -c)	configs="$configs $2"; shift;;
+                -s)	media_size="$2" ; shift ;;
+                -f)	media_format="$2" ; shift ;;
+                -p)	name="$2" ; shift ;;
+                -c)	configs="$configs $2"; shift ;;
                 --)     shift; break ;;
-                *)      echo_abort 1 "$1: Unknown argument, aborting."
+                 *)     echo_abort 1 "$1: Unknown argument, aborting."
         esac
 	shift
 done
@@ -76,17 +76,17 @@ fmtsize()
 	echo $var | tr -d '[0-9]' | read strings
 	if [-n "$numbers" ]; then
 		case "$var" in
-			cd)	media_size=700;;
-			dvd)	media_size=4700;;
-			*)	media_size=700;;
+			cd)	media_size=700 ;;
+			dvd)	media_size=4700 ;;
+			  *)	media_size=700 ;;
 		esac
 	else
 		echo $strings | tr "[:upper:]" "[:lower:]" | read lstrings
 		case "$lstrings" in
-			k|kb|kib|kylobytes|kilobites)	media_size=$numbers/1024;;
-			m|mb|mib|megabytes|megabites)	media_size=$numbers;;
-			g|gb|gib|gigabytes|gigabites)	media_size=$numbers*1024;;
-			*)				echo_abort 1 "$strings: Unknown size unit specified, aborting."
+			k|kb|kib|kylobytes|kilobites)	media_size="$numbers"/1024 ;;
+			m|mb|mib|megabytes|megabites)	media_size="$numbers" ;;
+			g|gb|gib|gigabytes|gigabites)	media_size="$numbers"*1024 ;;
+			                           *)	echo_abort 1 "$strings: Unknown size unit specified, aborting."
 		esac
 	fi
 }