diff --git a/ffsampledsp-java/src/main/java/com/tagtraum/ffsampledsp/FFAudioFileFormat.java b/ffsampledsp-java/src/main/java/com/tagtraum/ffsampledsp/FFAudioFileFormat.java
index 07446e2..a10c344 100644
--- a/ffsampledsp-java/src/main/java/com/tagtraum/ffsampledsp/FFAudioFileFormat.java
+++ b/ffsampledsp-java/src/main/java/com/tagtraum/ffsampledsp/FFAudioFileFormat.java
@@ -116,6 +116,7 @@ private static float determineFrameRate(final int codecId, final float sampleRat
     }
 
     private static Type getAudioFileFormatType(final String url, final int codecId) throws UnsupportedAudioFileException {
+
         if (url == null) {
             final AudioFormat.Encoding encoding = FFAudioFormat.FFEncoding.getInstance(codecId);
             final Type type = TYPE_MAP.get(codecId);
@@ -149,7 +150,11 @@ private static Type getAudioFileFormatType(final String url, final int codecId)
                 fileType = new Type(extension.toUpperCase(), extension);
             }
         } else {
-            throw new UnsupportedAudioFileException("Unknown target audio url type: " + url);
+            // For audio files without explicit extension in file name.
+            final AudioFormat.Encoding encoding = FFAudioFormat.FFEncoding.getInstance(codecId);
+            final Type type = TYPE_MAP.get(codecId);
+            if (type != null) return type;
+            return new Type(encoding.toString().toUpperCase(), encoding.toString());
         }
         return fileType;
     }
diff --git a/ffsampledsp-java/src/main/java/com/tagtraum/ffsampledsp/FFAudioFileReader.java b/ffsampledsp-java/src/main/java/com/tagtraum/ffsampledsp/FFAudioFileReader.java
index 2a563f5..fd63a4a 100644
--- a/ffsampledsp-java/src/main/java/com/tagtraum/ffsampledsp/FFAudioFileReader.java
+++ b/ffsampledsp-java/src/main/java/com/tagtraum/ffsampledsp/FFAudioFileReader.java
@@ -27,6 +27,7 @@
 import javax.sound.sampled.spi.AudioFileReader;
 import java.io.*;
 import java.net.MalformedURLException;
+import java.net.URI;
 import java.net.URL;
 import java.net.URLDecoder;
 import java.nio.ByteBuffer;
@@ -126,30 +127,31 @@ public AudioFileFormat[] getAudioFileFormats(final File file) throws Unsupported
      * @throws MalformedURLException if the URL is malformed
      */
     static URL fileToURL(final File file) throws MalformedURLException {
-        try {
-            String encoded = file.toURI().toString().replace("+", "%2B");
-            return new URL(URLDecoder.decode(encoded, "UTF-8"));
-        } catch (UnsupportedEncodingException e) {
-            final MalformedURLException malformedURLException = new MalformedURLException();
-            malformedURLException.initCause(e);
-            throw malformedURLException;
-        }
+        String encoded = file.toURI().toString().replace("+", "%2B");
+        return URI.create(encoded).toURL();
     }
 
     /**
      * Make sure that file URLs on Windows follow the super special libav style, e.g. "file:C:/path/file.ext"
      * or "file://UNCServerName/path/file.ext".
      */
-    static String urlToString(final URL url) {
+    static String urlToString(final URL url) throws UnsupportedEncodingException {
         if (url == null) return null;
-        final String s = url.toString();
-        if (WINDOWS && s.matches("file\\:/[^\\/].*")) {
-            return s.replace("file:/", "file:");
-        }
-        // deal with UNC paths
-        if (WINDOWS && s.matches("file\\:////[^\\/].*")) {
-            return s.replace("file://", "file:");
+
+        String s = url.toString();
+
+        // Encode "+" character
+        s = s.replace("+", "%2B");
+        s = URLDecoder.decode(s, "UTF-8");
+
+        if (WINDOWS) {
+            if (s.matches("file\\:/[^\\/].*")) {
+                s = s.replace("file:/", "file:"); // (file:/) -> (file:)
+            } else if (s.matches("file\\:////[^\\/].*")) {
+                s = s.replace("file://", "file:"); // For UNC paths (file:////) -> (file://)
+            }
         }
+
         return s;
     }