diff --git a/bin/exif-fixdatetime b/bin/exif-fixdatetime
index b7e3ab9..f9d0f64 100755
--- a/bin/exif-fixdatetime
+++ b/bin/exif-fixdatetime
@@ -133,7 +133,7 @@ run_fix () {
         image/jpeg)
             MIMEDEST="${mimedestpic}/${subdestpic}"
             ;;
-        video/mp4|video/m4a)
+        video/mp4|video/m4a|video/3gpp)
             MIMEDEST="${mimedestvid}/${subdestvid}"
             ;;
         *)
@@ -143,13 +143,13 @@ run_fix () {
     if [ -n "${MIMEDEST+x}" ] ; then
 
         if $forcedate; then
-            [ -n "$newDateTimeOriginal" ] && exiftool "-DateTimeOriginal=$newDateTimeOriginal" "$file"
-            exiftool '-createdate<datetimeoriginal' -if '($datetimeoriginal)' "$file"
-            exiftool '-datetimeoriginal<createdate' -if '(not $datetimeoriginal and $createdate)' "$file"
+            $setdate && [ -n "$newDateTimeOriginal" ] && exiftool "-DateTimeOriginal=$newDateTimeOriginal" "$file"
+            $setdate && exiftool '-createdate<datetimeoriginal' -if '($datetimeoriginal)' "$file"
+            $setdate && exiftool '-datetimeoriginal<createdate' -if '(not $datetimeoriginal and $createdate)' "$file"
         else
-            [ -n "$newDateTimeOriginal" ] && exiftool "-DateTimeOriginal=$newDateTimeOriginal" -if '(not $datetimeoriginal)' "$file"
-            exiftool '-createdate<datetimeoriginal' -if '(not $createdate and $datetimeoriginal)' "$file"
-            exiftool '-datetimeoriginal<createdate' -if '(not $datetimeoriginal and $createdate)' "$file"
+            $setdate && [ -n "$newDateTimeOriginal" ] && exiftool "-DateTimeOriginal=$newDateTimeOriginal" -if '(not $datetimeoriginal)' "$file"
+            $setdate && exiftool '-createdate<datetimeoriginal' -if '(not $createdate and $datetimeoriginal)' "$file"
+            $setdate && exiftool '-datetimeoriginal<createdate' -if '(not $datetimeoriginal and $createdate)' "$file"
         fi
 
         loginfo "$(exiftool -filename -createdate -datetimeoriginal "$file")"
@@ -187,9 +187,9 @@ if [ $# -gt 0 ]; then
     esac
 
 else
-    loginfo "Progress all *.jpg, *.jpeg, *.png and mp4 files in pwd $(pwd)"
-    all=$(find ${maxdepth:+-maxdepth} ${maxdepth:+$maxdepth} -type f |grep -i ".jpg$\|.jpeg$\|.mp4$\|.png$"|wc -l)
-    find ${maxdepth:+-maxdepth} ${maxdepth:+$maxdepth} -type f |grep -i ".jpg$\|.jpeg$\|.mp4$\|.png$"|while read file; do
+    loginfo "Progress all *.jpg, *.jpeg, *.png and mp4, *.3gp files in pwd $(pwd)"
+    all=$(find ${maxdepth:+-maxdepth} ${maxdepth:+$maxdepth} -type f |grep -i ".jpg$\|.jpeg$\|.mp4$\|.png$\|.3gp$"|wc -l)
+    find ${maxdepth:+-maxdepth} ${maxdepth:+$maxdepth} -type f |grep -i ".jpg$\|.jpeg$\|.mp4$\|.png$\|.3gp$"|while read file; do
         let "i=i+1"
         loginfo "$i/$all"
         run_fix "$file"