* add structure root logic for the different filesystem layouts of different OSes

source/net/sourceforge/filebot/media/MediaDetection.java

@@ -685,17 +685,6 @@ public class MediaDetection {
 	}
 
 	public static File guessMovieFolder(File movieFile) throws Exception {
-		File folder = guessMovieFolderWithoutSanity(movieFile);
-
-		// perform sanity checks
-		if (folder == null || folder.getName().isEmpty() || folder.equals(new File(System.getProperty("user.home")))) {
-			return null;
-		}
-
-		return folder;
-	}
-
-	private static File guessMovieFolderWithoutSanity(File movieFile) throws Exception {
 		// special case for folder mode
 		if (movieFile.isDirectory()) {
 			File f = movieFile;
@@ -704,7 +693,7 @@ public class MediaDetection {
 			if (!isStructureRoot(f.getParentFile()) && checkMovie(f.getParentFile(), false) != null && checkMovie(f, false) == null) {
 				return f.getParentFile();
 			} else {
-				return f;
+				return isStructureRoot(f) ? null : f;
 			}
 		}
 
@@ -887,6 +876,10 @@ public class MediaDetection {
 	}
 
 	public static boolean isStructureRoot(File folder) throws IOException {
+		if (folder.getName().isEmpty() || releaseInfo.getVolumeRoots().contains(folder)) {
+			return true;
+		}
+
 		return releaseInfo.getStructureRootPattern().matcher(folder.getName()).matches();
 	}
 

source/net/sourceforge/filebot/media/ReleaseInfo.java

@@ -167,8 +167,37 @@ public class ReleaseInfo {
 	}
 
 	// cached patterns
+	private Set<File> volumeRoots;
 	private Pattern structureRootFolderPattern;
 
+	public Set<File> getVolumeRoots() {
+		if (volumeRoots == null) {
+			Set<File> volumes = new HashSet<File>();
+
+			// user root folder
+			volumes.add(new File(System.getProperty("user.home")));
+
+			// Windows / Linux / Mac system roots
+			addAll(volumes, File.listRoots());
+
+			// media root folders
+			if (File.separator.equals("/")) {
+				// Linux and Mac
+				for (File root : File.listRoots()) {
+					addAll(volumes, root.listFiles(FOLDERS));
+				}
+				for (String path : asList("/Volumes", "/home", "/media", "/mnt")) {
+					File root = new File(path);
+					if (root.isDirectory()) {
+						addAll(volumes, root.listFiles(FOLDERS));
+					}
+				}
+			}
+			volumeRoots = volumes;
+		}
+		return volumeRoots;
+	}
+
 	public Pattern getStructureRootPattern() throws IOException {
 		if (structureRootFolderPattern == null) {
 			List<String> folders = new ArrayList<String>();