diff --git a/kdeedu-kbruch/PKGBUILD b/kdeedu-kbruch/PKGBUILD
index 0a2a15c75..9d6dcb71f 100644
--- a/kdeedu-kbruch/PKGBUILD
+++ b/kdeedu-kbruch/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build()
 {
diff --git a/kdeedu-kgeography/PKGBUILD b/kdeedu-kgeography/PKGBUILD
index d77875cfd..db39cd6d2 100644
--- a/kdeedu-kgeography/PKGBUILD
+++ b/kdeedu-kgeography/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
 	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdeedu-kiten/PKGBUILD b/kdeedu-kiten/PKGBUILD
index d5d798565..cb06bc6ab 100644
--- a/kdeedu-kiten/PKGBUILD
+++ b/kdeedu-kiten/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
 	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdeedu-klettres/PKGBUILD b/kdeedu-klettres/PKGBUILD
index 47b7c7b84..08f2ae997 100644
--- a/kdeedu-klettres/PKGBUILD
+++ b/kdeedu-klettres/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
 	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdeedu-kmplot/PKGBUILD b/kdeedu-kmplot/PKGBUILD
index b451ce278..d2f160767 100644
--- a/kdeedu-kmplot/PKGBUILD
+++ b/kdeedu-kmplot/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
 	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdeedu-kstars/PKGBUILD b/kdeedu-kstars/PKGBUILD
index 93fcc1195..4cf3b8ba0 100644
--- a/kdeedu-kstars/PKGBUILD
+++ b/kdeedu-kstars/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
 	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdeedu-kturtle/PKGBUILD b/kdeedu-kturtle/PKGBUILD
index 23de6a39a..cce222b97 100644
--- a/kdeedu-kturtle/PKGBUILD
+++ b/kdeedu-kturtle/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
 	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdeedu-kwordquiz/PKGBUILD b/kdeedu-kwordquiz/PKGBUILD
index a25388645..646862660 100644
--- a/kdeedu-kwordquiz/PKGBUILD
+++ b/kdeedu-kwordquiz/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
 	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdeedu-marble/PKGBUILD b/kdeedu-marble/PKGBUILD
index cefe462ca..05aca6375 100644
--- a/kdeedu-marble/PKGBUILD
+++ b/kdeedu-marble/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 # create tarball: source PKGBUILD && mksource
 
diff --git a/kdeedu-rocs/PKGBUILD b/kdeedu-rocs/PKGBUILD
index ea30a606c..1e2f5d63e 100644
--- a/kdeedu-rocs/PKGBUILD
+++ b/kdeedu-rocs/PKGBUILD
@@ -26,8 +26,8 @@ groups=("kde" "kdeedu" "kde-uninstall")
 categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
  	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdeedu-step/PKGBUILD b/kdeedu-step/PKGBUILD
index 6b6a9e138..abd323bda 100644
--- a/kdeedu-step/PKGBUILD
+++ b/kdeedu-step/PKGBUILD
@@ -27,8 +27,8 @@ categories=('education')
 options=('docs' '!splithdr' 'splitdbg' 'log')
 install=${pkgname}.install
 
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 build() {
 	cd ${srcdir}/${_pkgname}-${pkgver}
diff --git a/kdegames/PKGBUILD b/kdegames/PKGBUILD
index 0d6e870f0..1d7dd3d1c 100644
--- a/kdegames/PKGBUILD
+++ b/kdegames/PKGBUILD
@@ -65,8 +65,8 @@ options=('docs' '!splithdr' 'splitdbg' 'log')
 makedepends=('pkgconfig' 'cmake' 'automoc4' "kdelibs>=${_kdever}" "kde-runtime>=${_kdever}" 'qca' 'ggz-client-libs' 'gnugo' 'twisted' 'openal' 'qhull' 'pyqt' 
 "kdebindings-pykde4>=${_kdever}" 'docbook-xsl')
 
-source=("$_mirror/${pkgbase}-$_kdever.tar.bz2")
-md5sums=(`grep ${pkgbase}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${pkgbase}-$_kdever.tar.xz")
+md5sums=(`grep ${pkgbase}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 
 
diff --git a/kdegraphics-gwenview/PKGBUILD b/kdegraphics-gwenview/PKGBUILD
index 84244dd59..0f851d948 100644
--- a/kdegraphics-gwenview/PKGBUILD
+++ b/kdegraphics-gwenview/PKGBUILD
@@ -21,8 +21,8 @@ license=('GPL' 'LGPL' 'FDL')
 depends=("kde-runtime>=${_kdever}" "kdegraphics-libkipi>=${_kdever}")
 makedepends=('cmake' 'automoc4' "kde-baseapps-konqueror>=${_kdever}")
 opdepends=('kdegraphics-kamera: to work directly with cameras')
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 install=${pkgname}.install
 groups=("kde" "kdegraphics" "kde-uninstall")
 categories=('graphics')
diff --git a/kdegraphics-kruler/PKGBUILD b/kdegraphics-kruler/PKGBUILD
index de5ab9e3e..c2bd16afe 100644
--- a/kdegraphics-kruler/PKGBUILD
+++ b/kdegraphics-kruler/PKGBUILD
@@ -20,8 +20,8 @@ arch=('i686' 'x86_64')
 license=('GPL' 'LGPL' 'FDL')
 depends=("kde-runtime>=${_kdever}")
 makedepends=('cmake' 'automoc4')
-source=("$_mirror/${_pkgname}-$_kdever.tar.bz2")
-md5sums=(`grep ${_pkgname}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${_pkgname}-$_kdever.tar.xz")
+md5sums=(`grep ${_pkgname}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 install=${pkgname}.install
 groups=("kde" "kdegraphics" "kde-uninstall")
 categories=('graphics')
diff --git a/kdemultimedia/PKGBUILD b/kdemultimedia/PKGBUILD
index 83f406b10..642b4a098 100644
--- a/kdemultimedia/PKGBUILD
+++ b/kdemultimedia/PKGBUILD
@@ -31,7 +31,7 @@ options=('docs' '!splithdr' 'splitdbg' 'log')
 makedepends=('ffmpeg' 'pkgconfig' 'cmake' 'automoc4' "kdelibs>=${_kdever}" "kde-runtime>=${_kdever}"
              'cdparanoia' 'mplayer' 'libpulse' 'musicbrainz>=3.0.3' 'taglib' 'automoc4' 'docbook-xsl')
 
-source=($_mirror/${pkgbase}-$_kdever.tar.bz2
+source=($_mirror/${pkgbase}-$_kdever.tar.xz
 	http://kenai.com/projects/kde-odf-thumbnail/downloads/download/1.0.0/kde-odf-thumbnail-1.0.0.tar.gz
 	http://kde-apps.org/CONTENT/content-files/107128-GimpResourcesThumbnailer-2.1.0.tar.gz
 	http://kde-apps.org/CONTENT/content-files/114885-AudioThumbs-0.1.tar.gz
@@ -40,7 +40,7 @@ source=($_mirror/${pkgbase}-$_kdever.tar.bz2
 	sprocket-medium.png
 	sprocket-small.png)
 
-md5sums=(`grep ${pkgbase}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`
+md5sums=(`grep ${pkgbase}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`
          'edf694939f4b5d5e97c3fe2f91e7cec3'  # kde-odf-thumbnail-1.0.0.tar.gz
          '5e3022ddcf3876e07d4b9870e1806b48'  # 107128-GimpResourcesThumbnailer-2.1.0.tar.gz
          '07c3039ddf5e88ba0ab290570f43749d'  # 114885-AudioThumbs-0.1.tar.gz
diff --git a/kdenetwork/PKGBUILD b/kdenetwork/PKGBUILD
index 29511e426..36a9e3477 100644
--- a/kdenetwork/PKGBUILD
+++ b/kdenetwork/PKGBUILD
@@ -32,10 +32,10 @@ makedepends=('pkgconfig' 'cmake' 'automoc4' 'boost' 'speex' 'ortp' 'libotr' 'qca
 	     'ppp' 'libv4l' 'libidn' 'rdesktop' 'qimageblitz' 'libxss' 'libxdamage' 'libgadu' 
 	     'telepathy-qt4' 'meanwhile' 'mediastreamer' 'kwebkitpart>=0.9.6' 'libktorrent>=1.0.5' 'msilbc' 'docbook-xsl')
 
-source=("$_mirror/${pkgbase}-$_kdever.tar.bz2"
+source=("$_mirror/${pkgbase}-$_kdever.tar.xz"
         'lisa.daemon')
 
-md5sums=(`grep ${pkgbase}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`
+md5sums=(`grep ${pkgbase}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`
          '66069c83fd5fa0df5d743d4486799033')  # lisa.daemon
 
 
diff --git a/kdesdk/PKGBUILD b/kdesdk/PKGBUILD
index 3a94755c9..e5a88cc00 100644
--- a/kdesdk/PKGBUILD
+++ b/kdesdk/PKGBUILD
@@ -46,8 +46,8 @@ options=('docs' '!splithdr' 'splitdbg' 'log')
 makedepends=('pkgconfig' 'cmake' 'automoc4' 'boost' "kde-runtime>=${_kdever}" 'antlr2'
              "kdepimlibs>=${_kdever}" 'subversion' "kdebindings-pykde4>=${_kdever}" "kde-baseapps-konqueror>=${_kdever}" 'java-runtime' 'docbook-xsl')
 
-source=("$_mirror/${pkgbase}-$_kdever.tar.bz2")
-md5sums=(`grep ${pkgbase}-$_kdever.tar.bz2 ../kde-sc.md5 | cut -d" " -f1`)
+source=("$_mirror/${pkgbase}-$_kdever.tar.xz")
+md5sums=(`grep ${pkgbase}-$_kdever.tar.xz ../kde-sc.md5 | cut -d" " -f1`)
 
 #
 # build function