diff --git a/autotests/CMakeLists.txt b/autotests/CMakeLists.txt
--- a/autotests/CMakeLists.txt
+++ b/autotests/CMakeLists.txt
@@ -166,6 +166,15 @@
         LINK_LIBRARIES Qt5::Test KF5::FileMetaData
 )
 
+set(writercollection_SRCS
+    writercollectiontest.cpp
+)
+
+ecm_add_test(${writercollection_SRCS}
+        TEST_NAME "writercollectiontest"
+        LINK_LIBRARIES Qt5::Test KF5::FileMetaData
+)
+
 #
 # XML
 #
diff --git a/src/writer.h b/src/writer.h
--- a/src/writer.h
+++ b/src/writer.h
@@ -39,6 +39,13 @@
 class KFILEMETADATA_EXPORT Writer
 {
 public:
+    class WriterPrivate;
+
+    enum WriterPluginOwnership {
+        AutoDeletePlugin,
+        DoNotDeletePlugin,
+    };
+
     virtual ~Writer();
 
     void write(const WriteData& data);
@@ -50,10 +57,9 @@
 
     void operator =(const Writer&);
 
-    class WriterPrivate;
-    WriterPrivate *d_ptr;
-    Q_DECLARE_PRIVATE(Writer)
+    void setAutoDeletePlugin(WriterPluginOwnership autoDelete);
 
+    WriterPrivate *d;
     friend class WriterCollection;
 };
 }
diff --git a/src/writer.cpp b/src/writer.cpp
--- a/src/writer.cpp
+++ b/src/writer.cpp
@@ -28,25 +28,26 @@
 using namespace KFileMetaData;
 
 Writer::Writer()
-    : d_ptr(new WriterPrivate)
+    : d(new WriterPrivate)
 {
 }
 
 Writer::~Writer()
 {
-    Q_D(Writer);
-    delete d->m_plugin;
-    delete d_ptr;
+    delete d;
 }
 
 void Writer::write(const WriteData& data)
 {
-    Q_D(Writer);
     d->m_plugin->write(data);
 }
 
 QStringList Writer::mimetypes() const
 {
-    Q_D(const Writer);
     return d->m_plugin->writeMimetypes();
 }
+
+void Writer::setAutoDeletePlugin(WriterPluginOwnership autoDelete)
+{
+    d->m_autoDeletePlugin = autoDelete;
+}
diff --git a/src/writer_p.h b/src/writer_p.h
--- a/src/writer_p.h
+++ b/src/writer_p.h
@@ -31,7 +31,15 @@
 class Q_DECL_HIDDEN Writer::WriterPrivate
 {
 public:
+    ~WriterPrivate() {
+        if (m_autoDeletePlugin == AutoDeletePlugin) {
+            delete m_plugin;
+        }
+    }
+
     WriterPlugin *m_plugin = nullptr;
+
+    WriterPluginOwnership m_autoDeletePlugin = AutoDeletePlugin;
 };
 
 }
diff --git a/src/writercollection.h b/src/writercollection.h
--- a/src/writercollection.h
+++ b/src/writercollection.h
@@ -45,8 +45,7 @@
 
 private:
     class WriterCollectionPrivate;
-    WriterCollectionPrivate* d_ptr;
-    Q_DECLARE_PRIVATE(WriterCollection)
+    WriterCollectionPrivate* d;
 };
 }
 
diff --git a/src/writercollection.cpp b/src/writercollection.cpp
--- a/src/writercollection.cpp
+++ b/src/writercollection.cpp
@@ -32,24 +32,25 @@
 #include <QCoreApplication>
 #include <QPluginLoader>
 #include <QDir>
+#include <QMimeDatabase>
 
 using namespace KFileMetaData;
 
 class Q_DECL_HIDDEN WriterCollection::WriterCollectionPrivate
 {
 public:
     QHash<QString, Writer*> m_writers;
 
-    QList<Writer*> allWriters() const;
+    QList<Writer*> m_allWriters;
+
+    void findWriters();
 };
 
 WriterCollection::WriterCollection()
-    : d_ptr(new WriterCollectionPrivate)
+    : d(new WriterCollectionPrivate)
 {
-    Q_D(WriterCollection);
-    const QList<Writer*> all = d->allWriters();
-
-    for (Writer* writer : all) {
+    d->findWriters();
+    for (Writer* writer : qAsConst(d->m_allWriters)) {
         const QStringList lst = writer->mimetypes();
         for (const QString& type : lst) {
             d->m_writers.insertMulti(type, writer);
@@ -59,13 +60,11 @@
 
 WriterCollection::~WriterCollection()
 {
-    Q_D(WriterCollection);
-    qDeleteAll(d->m_writers.begin(), d->m_writers.end());
+    qDeleteAll(d->m_allWriters);
     delete d;
 }
 
-
-QList<Writer*> WriterCollection::WriterCollectionPrivate::allWriters() const
+void WriterCollection::WriterCollectionPrivate::findWriters()
 {
     QStringList plugins;
     QStringList pluginPaths;
@@ -106,7 +105,6 @@
     }
     externalPlugins.clear();
 
-    QList<Writer*> writers;
     for (const QString& pluginPath : qAsConst(pluginPaths)) {
         QPluginLoader loader(pluginPath);
 
@@ -121,9 +119,10 @@
             WriterPlugin* plugin = qobject_cast<WriterPlugin*>(obj);
             if (plugin) {
                 Writer* writer = new Writer;
-                writer->d_ptr->m_plugin = plugin;
+                writer->d->m_plugin = plugin;
+                writer->setAutoDeletePlugin(Writer::DoNotDeletePlugin);
 
-                writers << writer;
+                m_allWriters << writer;
             } else {
                 qCDebug(KFILEMETADATA_LOG) << "Plugin could not be converted to a WriterPlugin";
                 qCDebug(KFILEMETADATA_LOG) << pluginPath;
@@ -137,23 +136,33 @@
     for (const QString& externalPluginPath : qAsConst(externalPluginPaths)) {
         ExternalWriter *plugin = new ExternalWriter(externalPluginPath);
         Writer* writer = new Writer;
-        writer->d_ptr->m_plugin = plugin;
+        writer->d->m_plugin = plugin;
+        writer->setAutoDeletePlugin(Writer::AutoDeletePlugin);
 
-        writers << writer;
+        m_allWriters << writer;
     }
-
-    return writers;
 }
 
 QList<Writer*> WriterCollection::fetchWriters(const QString& mimetype) const
 {
-    Q_D(const WriterCollection);
     QList<Writer*> plugins = d->m_writers.values(mimetype);
-    if (plugins.isEmpty()) {
-        auto it = d->m_writers.constBegin();
-        for (; it != d->m_writers.constEnd(); ++it) {
-            if (mimetype.startsWith(it.key()))
-                plugins << it.value();
+    if (!plugins.isEmpty()) {
+        return plugins;
+    }
+
+    // try to find the best matching more generic extractor by mimetype inheritance
+    QMimeDatabase db;
+    auto type = db.mimeTypeForName(mimetype);
+    const QStringList ancestors = type.allAncestors();
+
+    for (auto ancestor : ancestors) {
+        if (ancestor == QLatin1String("application/octet-stream")) {
+            continue;
+        }
+        QList<Writer*> plugins = d->m_writers.values(ancestor);
+        if (!plugins.isEmpty()) {
+            qCDebug(KFILEMETADATA_LOG) << "Using inherited mimetype" << ancestor <<  "for" << mimetype;
+            return plugins;
         }
     }
 
diff --git a/src/writers/CMakeLists.txt b/src/writers/CMakeLists.txt
--- a/src/writers/CMakeLists.txt
+++ b/src/writers/CMakeLists.txt
@@ -7,6 +7,7 @@
         ${TAGLIB_LIBRARIES}
     )
 
+    set_target_properties(kfilemetadata_taglibwriter PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin/kf5/kfilemetadata/writers")
     install(
     TARGETS kfilemetadata_taglibwriter
     DESTINATION ${PLUGIN_INSTALL_DIR}/kf5/kfilemetadata/writers)