diff --git a/update_garmin.sh b/update_garmin.sh
index 8625c8e..b443b93 100644
--- a/update_garmin.sh
+++ b/update_garmin.sh
@@ -3,29 +3,41 @@
 set -x
 
 LocalDir=/dat/gps/garmin
-Downloadfile=gmapsupp.img.bz2
+Garminfile=gmapsupp.img
+Downloadfile=$Garminfile.bz2
 url_d=http://www.juergen-frank.de/osm/gmapsupps/germany/$Downloadfile
 url_eur=http://www.juergen-frank.de/osm/gmapsupps/europe/$Downloadfile
 TarFileName_d=garmin_allinone_d_
 TarFileName_eur=garmin_allinone_eur_
+TmpFile=tmp
 
 [ -e $LocalDir/d ] || mkdir $LocalDir/d
 cd $LocalDir/d
 wget -N $url_d
 # Tar File to add the date of creation to the filenamr
 datestr=$(stat -c %y $Downloadfile | cut -f 1 -d ' ')
-TarFile=../$TarFileName_d$datestr.tar 
-if [ ! -f $TarFile ]; then 
-	tar -cf $TarFile gmapsupp.img.bz2 
+TarFile=../$TarFileName_d$datestr.tar.bz2 
+if [ ! -f $TarFile ]; then
+    nice -n 19 cp $Downloadfile $TmpFile.bz2
+    nice -n 19 bunzip2 $TmpFile.bz2
+    mv $TmpFile $Garminfile
+    nice -n 19 tar -cjf $TarFile $Garminfile 
+    nice -n 19 rm $Garminfile
 fi
 
 [ -e $LocalDir/eur ] || mkdir $LocalDir/eur
 cd $LocalDir/eur
 wget -N $url_eur
 datestr=$(stat -c %y $Downloadfile | cut -f 1 -d ' ')
-TarFile=../$TarFileName_eur$datestr.tar 
+TarFile=../$TarFileName_eur$datestr.tar.bz2 
 if [ ! -f $TarFile ]; then 
-	tar -cf $TarFile gmapsupp.img.bz2 
+    nice -n 19 cp $Downloadfile $TmpFile.bz2
+    nice -n 19 bunzip2 $TmpFile.bz2
+    mv $TmpFile $Garminfile
+    nice -n 19 tar -cjf $TarFile $Garminfile
+    nice -n 19 
+    rm $Garminfile 
+    #tar -cf $TarFile gmapsupp.img.bz2 
 fi