diff --git a/dwm-anime-wallpaper.sh b/dwm-anime-wallpaper.sh
index 24f2947..ee8ee70 100755
--- a/dwm-anime-wallpaper.sh
+++ b/dwm-anime-wallpaper.sh
@@ -3,6 +3,9 @@
 SwitchTime=60
 DirAnime=$(xdg-user-dir PICTURES)/dwm-anime-wallpaper/
 
+
+[[ ! -z $(ps axf| grep $(basename $0)| grep -v grep ) ]] && exit
+
 while true
 	do 
 		
@@ -11,7 +14,7 @@ while true
 		for Img in $(find "${DirAnime}"/"${RDir}"/ -name *.bmp | sort -n)
 			do 
 				feh --bg-scale "${Img}"
-				sleep 0.01
+				#sleep 0.01
 				Pdate=$(date +%s)
 				[[ ${SwitchTime} -lt $((Pdate-Adate)) ]] && break
 			done
diff --git a/mp4tobmp.sh b/mp4tobmp.sh
index 3684cac..3e84383 100755
--- a/mp4tobmp.sh
+++ b/mp4tobmp.sh
@@ -37,7 +37,7 @@ Action () {
 CheckFile() {
 	Return=0
 	[[ ! -e ${File} ]] && ((Return++))
-	file "${File}"| grep -q "ISO Media, MP4 v2"
+	file "${File}"| grep -q "MP4"
 	Res=${?}
 	[[ ${Res} -ne 0 ]] && ((Return++))
 	return "${Return}"