diff --git a/README.md b/README.md
index 13dfc47819ccaffdcb67de20aa03d7e6557baf5f..80a186c04d6a279cc59755c99e015b31c36f792c 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,9 @@ based on:
 Mediaconch is an open source tool to validate and standardize audiovisual files
 for long-term preservation, see https://mediaarea.net/MediaConch/ for details
 
+This branch should only be used for old digitized material of "Tanzarchiv"!
+
+
 Hint: the policy is not officially released, 
 please check http://www.slub-dresden.de/ueber-uns/slubarchiv/technische-standards-fuer-die-ablieferung-von-digitalen-dokumenten/langzeitarchivfaehige-dateiformate/ for release information.
 
diff --git a/SLUB_mediaconch_policy_retrodigitized_audio.xml b/SLUB_mediaconch_policy_retrodigitized_audio.xml
deleted file mode 100644
index f5c219300f53e2d4c97afa1c76864545114553c5..0000000000000000000000000000000000000000
--- a/SLUB_mediaconch_policy_retrodigitized_audio.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0"?>
-<policy type="or" name="SLUB Policy for MKV/linear PCM, retrodigitized audio" license="CC-BY-SA-4.0+">
-  <description>SLUB related policy to test that the audio file is suitable for archiving purposes.
-    This checks if a MKV/linear PCM fulfills the needs for Audio retrodigitization:
-    - Container format is Matroska with error detection (CRC)
-    - Audio format is PCM (unfortunately it can not contain error detection) or FLAC (it has CRC by design)
-    This policy is based on:
-    - Example MKV FFV1 digitization policy.xml
-    - Video file is MKV + FFV1-Intra + PCM or FLAC with CRC32 everywhere.xml
-    If there are any policy violations or suggestions, please send an email to langzeitarchiv@slub-dresden.de
-  </description>
-  <policy type="and" name="MKV, FFV1 Intra, PCM/FLAC, error detection">
-    <policy type="and" name="Container">
-      <rule name="General/FileExtension is mkv" value="FileExtension" tracktype="General" occurrence="*" operator="=">mkv</rule>
-      <rule name="Container is MKV" value="Format" tracktype="General" occurrence="*" operator="=">Matroska</rule>
-      <rule name="Unique ID is present" value="UniqueID" tracktype="General" occurrence="*"/>
-      <rule name="Container uses error detection" value="extra/ErrorDetectionType" tracktype="General" occurrence="*" operator="=">Per level 1</rule>
-      <rule name="General/Format_Version is 4" value="Format_Version" tracktype="General" occurrence="*" operator="=">4</rule>
-      
-    </policy>
-
-    <policy type="or" name="Audio">
-      <rule name="General/AudioCount is 1" value="AudioCount" tracktype="General" occurrence="*" operator="=">1</rule>
-      <policy type="or" name="Audio is PCM or FLAC">
-        <rule name="Audio is PCM" value="Format" tracktype="Audio" occurrence="*" operator="=">PCM</rule>
-        <rule name="Audio is FLAC" value="Format" tracktype="Audio" occurrence="*" operator="=">FLAC</rule>
-      </policy>
-      <rule name="Audio is 48000 Hz" value="SamplingRate" tracktype="Audio" occurrence="*" operator="=">48000</rule>
-      <policy type="or" name="Audio is Stereo or Mono">
-        <rule name="Audio is mono" value="Channels" tracktype="Audio" occurrence="*" operator="=">1</rule>
-        <rule name="Audio is stereo" value="Channels" tracktype="Audio" occurrence="*" operator="=">2</rule>
-      </policy>
-      <policy type="or" name="Audio Bit Depth is 16 or 24">
-        <rule name="Bit Depth is 16" value="BitDepth" tracktype="Audio" occurrence="*" operator="=">16</rule>
-        <rule name="Bit Depth is 24" value="BitDepth" tracktype="Audio" occurrence="*" operator="=">24</rule>
-      </policy>
-    </policy>
-  </policy>
-</policy>
diff --git a/SLUB_mediaconch_policy_retrodigitized_film16mm.xml b/SLUB_mediaconch_policy_retrodigitized_film16mm.xml
deleted file mode 100644
index 9a01d37518b3adb17d133ee87eaf1c95a1ae1f2c..0000000000000000000000000000000000000000
--- a/SLUB_mediaconch_policy_retrodigitized_film16mm.xml
+++ /dev/null
@@ -1,65 +0,0 @@
-<?xml version="1.0"?>
-<policy type="or" name="SLUB Policy for MKV/FFV1v3, retrodigitized film 16mm" license="CC-BY-SA-4.0+">
-  <description>SLUB related policy to test that the video file is suitable for archiving purposes.
-    This checks if a MKV/FFV1v3 fulfills the needs for 16mm retrodigitization (also Super16, Normal16,…):
-    - Container format is Matroska with error detection (CRC)
-    - Video format is FFV1 with error detection (CRC) and with Intra mode (each frame is independent)
-    - Audio format is PCM (unfortunately it can not contain error detection) or FLAC (it has CRC by design)
-    This policy is based on:
-    - Example MKV FFV1 digitization policy.xml
-    - Video file is MKV + FFV1-Intra + PCM or FLAC with CRC32 everywhere.xml
-    If there are any policy violations or suggestions, please send an email to langzeitarchiv@slub-dresden.de
-  </description>
-  <policy type="and" name="MKV, FFV1 Intra, PCM/FLAC, error detection">
-    <policy type="and" name="Container">
-      <rule name="General/FileExtension is mkv" value="FileExtension" tracktype="General" occurrence="*" operator="=">mkv</rule>
-      <rule name="Container is MKV" value="Format" tracktype="General" occurrence="*" operator="=">Matroska</rule>
-      <rule name="Unique ID is present" value="UniqueID" tracktype="General" occurrence="*"/>
-      <rule name="Container uses error detection" value="extra/ErrorDetectionType" tracktype="General" occurrence="*" operator="=">Per level 1</rule>
-      <rule name="General/Format_Version is 4" value="Format_Version" tracktype="General" occurrence="*" operator="=">4</rule>
-      <rule name="General/FrameRate is 24.000" value="FrameRate" tracktype="General" occurrence="*" operator="=">24.000</rule>
-    </policy>
-    <policy type="and" name="Video">
-      <rule name="Video is FFV1" value="Format" tracktype="Video" occurrence="*" operator="=">FFV1</rule>
-      <rule name="FFV1 is version 3.4 or later" value="Format_Version" tracktype="Video" occurrence="*" operator="&gt;=">3.4</rule>
-      <rule name="GOP size of 1" value="Format_Settings_GOP" tracktype="Video" occurrence="*" operator="=">N=1</rule>
-      <rule name="Video uses error detection" value="extra/ErrorDetectionType" tracktype="Video" occurrence="*" operator="=">Per slice</rule>
-      <rule name="Frame Rate is Constant" value="FrameRate_Mode" tracktype="Video" occurrence="*" operator="=">CFR</rule>
-      <rule name="Video/ScanType is Progressive" value="ScanType" tracktype="Video" occurrence="*" operator="=">Progressive</rule>
-      <rule name="Video/Compression_Mode is Lossless" value="Compression_Mode" tracktype="Video" occurrence="*" operator="=">Lossless</rule>
-      
-      <policy type="and" name="Video is 2k/16bit RGB">
-        <policy type="or" name="typical Resolutions">
-          <policy type="and" name="2K HD Format (2048x1080)">
-            <rule name="Video/Width is 2048" value="Width" tracktype="Video" occurrence="*" operator="=">2048</rule>
-            <rule name="Video/Height is 1080" value="Height" tracktype="Video" occurrence="*" operator="=">1080</rule>
-            <rule name="Video/DisplayAspectRatio is 1.347" value="DisplayAspectRatio" tracktype="Video" occurrence="*" operator="=">1.347</rule>
-          </policy>
-        </policy>
-        <rule name="Video/PixelAspectRatio is 1.000" value="PixelAspectRatio" tracktype="Video" occurrence="*" operator="=">1.000</rule>
-        <rule name="ColorSpace is RGB" value="ColorSpace" tracktype="Video" occurrence="*" operator="=">RGB</rule>
-        <rule name="Bit Depth is 16" value="BitDepth" tracktype="Video" occurrence="*" operator="=">16</rule>
-      </policy>
-    </policy>
-    
-    <policy type="or" name="Audio">
-      <rule name="Audio does not exist" value="AudioCount" tracktype="General" occurrence="*" operator="must not exist"/>
-      <policy type="or" name="Audio exist">
-        <rule name="General/AudioCount is 1" value="AudioCount" tracktype="General" occurrence="*" operator="=">1</rule>
-        <policy type="or" name="Audio is PCM or FLAC">
-          <rule name="Audio is PCM" value="Format" tracktype="Audio" occurrence="*" operator="=">PCM</rule>
-          <rule name="Audio is FLAC" value="Format" tracktype="Audio" occurrence="*" operator="=">FLAC</rule>
-        </policy>
-        <rule name="Audio is 48000 Hz" value="SamplingRate" tracktype="Audio" occurrence="*" operator="=">48000</rule>
-        <policy type="or" name="Audio is Stereo or Mono">
-          <rule name="Audio is mono" value="Channels" tracktype="Audio" occurrence="*" operator="=">1</rule>
-          <rule name="Audio is stereo" value="Channels" tracktype="Audio" occurrence="*" operator="=">2</rule>
-        </policy>
-        <policy type="or" name="Audio Bit Depth is 16 or 24">
-          <rule name="Bit Depth is 16" value="BitDepth" tracktype="Audio" occurrence="*" operator="=">16</rule>
-          <rule name="Bit Depth is 24" value="BitDepth" tracktype="Audio" occurrence="*" operator="=">24</rule>
-        </policy>
-      </policy>
-    </policy>
-  </policy>
-</policy>
diff --git a/SLUB_mediaconch_policy_retrodigitized_film35mm.xml b/SLUB_mediaconch_policy_retrodigitized_film35mm.xml
deleted file mode 100644
index 9e26fe6a81e90d5d079ecb36d8d204becd09e224..0000000000000000000000000000000000000000
--- a/SLUB_mediaconch_policy_retrodigitized_film35mm.xml
+++ /dev/null
@@ -1,90 +0,0 @@
-<?xml version="1.0"?>
-<policy type="or" name="SLUB Policy for MKV/FFV1v3, retrodigitized film 35mm" license="CC-BY-SA-4.0+">
-  <description>SLUB related policy to test that the video file is suitable for archiving purposes.
-    This checks if a MKV/FFV1v3 fulfills the needs for 35mm retrodigitization:
-    - Container format is Matroska with error detection (CRC)
-    - Video format is FFV1 with error detection (CRC) and with Intra mode (each frame is independent)
-    This policy is based on:
-    - Example MKV FFV1 digitization policy.xml
-    - Video file is MKV + FFV1-Intra + PCM or FLAC with CRC32 everywhere.xml
-    If there are any policy violations or suggestions, please send an email to langzeitarchiv@slub-dresden.de
-  </description>
-  <policy type="and" name="MKV, FFV1 Intra, PCM/FLAC, error detection">
-    
-    <policy type="and" name="Container">
-      <rule name="General/FileExtension is mkv" value="FileExtension" tracktype="General" occurrence="*" operator="=">mkv</rule>
-      <rule name="Container is MKV" value="Format" tracktype="General" occurrence="*" operator="=">Matroska</rule>
-      <rule name="Unique ID is present" value="UniqueID" tracktype="General" occurrence="*"/>
-      
-      <rule name="Container uses error detection" value="extra/ErrorDetectionType" tracktype="General" occurrence="*" operator="=">Per level 1</rule>
-      <rule name="General/Format_Version is 4" value="Format_Version" tracktype="General" occurrence="*" operator="=">4</rule>
-      <rule name="General/FrameRate is 24.000" value="FrameRate" tracktype="General" occurrence="*" operator="=">24.000</rule>
-    </policy>
-    
-    <policy type="and" name="Video">
-      <rule name="Video is FFV1" value="Format" tracktype="Video" occurrence="*" operator="=">FFV1</rule>
-      <rule name="FFV1 is version 3.4 or later" value="Format_Version" tracktype="Video" occurrence="*" operator="&gt;=">3.4</rule>
-      <rule name="GOP size of 1" value="Format_Settings_GOP" tracktype="Video" occurrence="*" operator="=">N=1</rule>
-      <rule name="Video uses error detection" value="extra/ErrorDetectionType" tracktype="Video" occurrence="*" operator="=">Per slice</rule>
-      <rule name="Frame Rate is Constant" value="FrameRate_Mode" tracktype="Video" occurrence="*" operator="=">CFR</rule>
-      <rule name="Video/ScanType is Progressive" value="ScanType" tracktype="Video" occurrence="*" operator="=">Progressive</rule>
-      <rule name="Video/Compression_Mode is Lossless" value="Compression_Mode" tracktype="Video" occurrence="*" operator="=">Lossless</rule>
-      <rule name="Video/FrameRate is 24.000" value="FrameRate" tracktype="Video" occurrence="*" operator="=">24.000</rule>
-      
-      <policy type="and" name="Video is >=4k/16bit RGB">
-        <policy type="or" name="typical Resolutions">
-          <policy type="and" name="4K Akademy Format (4048x2990)">
-            <rule name="Video/Width is 4048" value="Width" tracktype="Video" occurrence="*" operator="=">4048</rule>
-            <rule name="Video/Height is 2990" value="Height" tracktype="Video" occurrence="*" operator="=">2990</rule>
-          </policy>
-          <policy type="and" name="4K Format Fa. CinepostProduction (4096x3200)">
-            <rule name="Video/Width is 4096" value="Width" tracktype="Video" occurrence="*" operator="=">4096</rule>
-            <rule name="Video/Height is 3200" value="Height" tracktype="Video" occurrence="*" operator="=">3200</rule>
-            <rule name="Video/DisplayAspectRatio is 1.280" value="DisplayAspectRatio" tracktype="Video" occurrence="*" operator="=">1.280</rule>
-          </policy>
-          <policy type="and" name="4K Format Fa. Omnimago (4096x3460)">
-            <rule name="Video/Width is 4096" value="Width" tracktype="Video" occurrence="*" operator="=">4096</rule>
-            <rule name="Video/Height is 3460" value="Height" tracktype="Video" occurrence="*" operator="=">3460</rule>
-            <rule name="Video/DisplayAspectRatio is 1.184" value="DisplayAspectRatio" tracktype="Video" occurrence="*" operator="=">1.184</rule>
-          </policy>
-          <policy type="and" name="4K Format Fa. Omnimago (4096x2976)">
-            <rule name="Video/Width is 4096" value="Width" tracktype="Video" occurrence="*" operator="=">4096</rule>
-            <rule name="Video/Height is 2976" value="Height" tracktype="Video" occurrence="*" operator="=">2976</rule>
-            <rule name="Video/DisplayAspectRatio is 1.376" value="DisplayAspectRatio" tracktype="Video" occurrence="*" operator="=">1.376</rule>
-          </policy>
-          
-          
-          <policy type="and" name="6k (volle Filmbreite, 6608x3476)">
-            <rule name="Video/Width is 6698" value="Width" tracktype="Video" occurrence="*" operator="=">6608</rule>
-            <rule name="Video/Height is 3476" value="Height" tracktype="Video" occurrence="*" operator="=">3476</rule>
-          </policy>
-        </policy>
-        <rule name="Video/PixelAspectRatio is 1.000" value="PixelAspectRatio" tracktype="Video" occurrence="*" operator="=">1.000</rule>
-        <rule name="ColorSpace is RGB" value="ColorSpace" tracktype="Video" occurrence="*" operator="=">RGB</rule>
-        <rule name="Bit Depth is 16" value="BitDepth" tracktype="Video" occurrence="*" operator="=">16</rule>
-        
-      </policy>
-
-    </policy>
-    
-    <policy type="or" name="Audio">
-      <rule name="Audio does not exist" value="AudioCount" tracktype="General" occurrence="*" operator="must not exist"/>
-      <policy type="or" name="Audio exist">
-        <rule name="General/AudioCount is 1" value="AudioCount" tracktype="General" occurrence="*" operator="=">1</rule>
-        <policy type="or" name="Audio is PCM or FLAC">
-          <rule name="Audio is PCM" value="Format" tracktype="Audio" occurrence="*" operator="=">PCM</rule>
-          <rule name="Audio is FLAC" value="Format" tracktype="Audio" occurrence="*" operator="=">FLAC</rule>
-        </policy>
-        <rule name="Audio is 48000 Hz" value="SamplingRate" tracktype="Audio" occurrence="*" operator="=">48000</rule>
-        <policy type="or" name="Audio is Stereo or Mono">
-          <rule name="Audio is mono" value="Channels" tracktype="Audio" occurrence="*" operator="=">1</rule>
-          <rule name="Audio is stereo" value="Channels" tracktype="Audio" occurrence="*" operator="=">2</rule>
-        </policy>
-        <policy type="or" name="Audio Bit Depth is 16 or 24">
-          <rule name="Bit Depth is 16" value="BitDepth" tracktype="Audio" occurrence="*" operator="=">16</rule>
-          <rule name="Bit Depth is 24" value="BitDepth" tracktype="Audio" occurrence="*" operator="=">24</rule>
-        </policy>
-      </policy>
-    </policy>
-  </policy>
-</policy>
diff --git a/SLUB_mediaconch_policy_retrodigitized_film8mm.xml b/SLUB_mediaconch_policy_retrodigitized_film8mm.xml
deleted file mode 100644
index 28f6ce6611baeca51dff805d3f35a0155108c5d0..0000000000000000000000000000000000000000
--- a/SLUB_mediaconch_policy_retrodigitized_film8mm.xml
+++ /dev/null
@@ -1,71 +0,0 @@
-<?xml version="1.0"?>
-<policy type="or" name="SLUB Policy for MKV/FFV1v3, retrodigitized film ~8mm" license="CC-BY-SA-4.0+">
-  <description>SLUB related policy to test that the video file is suitable for archiving purposes.
-    This checks if a MKV/FFV1v3 fulfills the needs for 8mm retrodigitization (also Super8, Normal8, 9,5mm…):
-    - Container format is Matroska with error detection (CRC)
-    - Video format is FFV1 with error detection (CRC) and with Intra mode (each frame is independent)
-    - Audio format is PCM (unfortunately it can not contain error detection) or FLAC (it has CRC by design)
-    This policy is based on:
-    - Example MKV FFV1 digitization policy.xml
-    - Video file is MKV + FFV1-Intra + PCM or FLAC with CRC32 everywhere.xml
-    If there are any policy violations or suggestions, please send an email to langzeitarchiv@slub-dresden.de
-  </description>
-  <policy type="and" name="MKV, FFV1 Intra, PCM/FLAC, error detection">
-    <policy type="and" name="Container">
-      <rule name="General/FileExtension is mkv" value="FileExtension" tracktype="General" occurrence="*" operator="=">mkv</rule>
-      <rule name="Container is MKV" value="Format" tracktype="General" occurrence="*" operator="=">Matroska</rule>
-      <rule name="Unique ID is present" value="UniqueID" tracktype="General" occurrence="*"/>
-      <rule name="Container uses error detection" value="extra/ErrorDetectionType" tracktype="General" occurrence="*" operator="=">Per level 1</rule>
-      <rule name="General/Format_Version is 4" value="Format_Version" tracktype="General" occurrence="*" operator="=">4</rule>
-      <rule name="General/FrameRate is 24.000" value="FrameRate" tracktype="General" occurrence="*" operator="=">24.000</rule>
-    </policy>
-    <policy type="and" name="Video">
-      <rule name="Video is FFV1" value="Format" tracktype="Video" occurrence="*" operator="=">FFV1</rule>
-      <rule name="FFV1 is version 3.4 or later" value="Format_Version" tracktype="Video" occurrence="*" operator="&gt;=">3.4</rule>
-      <rule name="GOP size of 1" value="Format_Settings_GOP" tracktype="Video" occurrence="*" operator="=">N=1</rule>
-      <rule name="Video uses error detection" value="extra/ErrorDetectionType" tracktype="Video" occurrence="*" operator="=">Per slice</rule>
-      <rule name="Frame Rate is Constant" value="FrameRate_Mode" tracktype="Video" occurrence="*" operator="=">CFR</rule>
-      <rule name="Video/ScanType is Progressive" value="ScanType" tracktype="Video" occurrence="*" operator="=">Progressive</rule>
-      <rule name="Video/Compression_Mode is Lossless" value="Compression_Mode" tracktype="Video" occurrence="*" operator="=">Lossless</rule>
-      
-      <policy type="and" name="Video is HD/10bit YUV/RGB">
-        <policy type="or" name="typical Resolutions">
-          <policy type="and" name="HD (1440x1080)">
-            <rule name="Video/Width is >=1440" value="Width" tracktype="Video" occurrence="*" operator="&gt;=">1440</rule>
-            <rule name="Video/Height is >=1080" value="Height" tracktype="Video" occurrence="*" operator="&gt;=">1080</rule>
-          </policy>
-        </policy>
-        <policy type="or" name="YUV or RGB">
-          <policy type="and" name="YUV">
-            <rule name="ColorSpace is YUV" value="ColorSpace" tracktype="Video" occurrence="*" operator="=">YUV</rule>
-            <rule name="Chroma Subsampling is 4:4:4" value="ChromaSubsampling" tracktype="Video" occurrence="*" operator="=">4:4:4</rule>
-          </policy>
-          <policy type="and" name="RGB">
-            <rule name="ColorSpace is RGB" value="ColorSpace" tracktype="Video" occurrence="*" operator="=">RGB</rule>
-          </policy>
-        </policy>
-        <rule name="Bit Depth is >=10" value="BitDepth" tracktype="Video" occurrence="*" operator="&gt;=">10</rule>
-      </policy>
-    </policy>
-
-    <policy type="or" name="Audio">
-      <rule name="Audio does not exist" value="AudioCount" tracktype="General" occurrence="*" operator="must not exist"/>
-      <policy type="or" name="Audio exist">
-        <rule name="General/AudioCount is 1" value="AudioCount" tracktype="General" occurrence="*" operator="=">1</rule>
-        <policy type="or" name="Audio is PCM or FLAC">
-          <rule name="Audio is PCM" value="Format" tracktype="Audio" occurrence="*" operator="=">PCM</rule>
-          <rule name="Audio is FLAC" value="Format" tracktype="Audio" occurrence="*" operator="=">FLAC</rule>
-        </policy>
-        <rule name="Audio is 48000 Hz" value="SamplingRate" tracktype="Audio" occurrence="*" operator="=">48000</rule>
-        <policy type="or" name="Audio is Stereo or Mono">
-          <rule name="Audio is mono" value="Channels" tracktype="Audio" occurrence="*" operator="=">1</rule>
-          <rule name="Audio is stereo" value="Channels" tracktype="Audio" occurrence="*" operator="=">2</rule>
-        </policy>
-        <policy type="or" name="Audio Bit Depth is 16 or 24">
-          <rule name="Bit Depth is 16" value="BitDepth" tracktype="Audio" occurrence="*" operator="=">16</rule>
-          <rule name="Bit Depth is 24" value="BitDepth" tracktype="Audio" occurrence="*" operator="=">24</rule>
-        </policy>
-      </policy>
-    </policy>
-  </policy>
-</policy>