diff --git a/src/org/geometerplus/fbreader/filetype/FileType.java b/src/org/geometerplus/fbreader/filetype/FileType.java
index 92f5e407d..3c1f82015 100644
--- a/src/org/geometerplus/fbreader/filetype/FileType.java
+++ b/src/org/geometerplus/fbreader/filetype/FileType.java
@@ -33,7 +33,7 @@ public abstract class FileType {
 
 	public abstract boolean acceptsFile(ZLFile file);
 
-	public abstract String extension();
+	//public abstract String extension();
 	public abstract List<MimeType> mimeTypes();
 	public abstract MimeType mimeType(ZLFile file);
 }
diff --git a/src/org/geometerplus/fbreader/filetype/FileTypeDjVu.java b/src/org/geometerplus/fbreader/filetype/FileTypeDjVu.java
index 3e024e337..39a4c6132 100644
--- a/src/org/geometerplus/fbreader/filetype/FileTypeDjVu.java
+++ b/src/org/geometerplus/fbreader/filetype/FileTypeDjVu.java
@@ -35,13 +35,20 @@ class FileTypeDjVu extends FileType {
 		return "djvu".equalsIgnoreCase(extension) || "djv".equalsIgnoreCase(extension);
 	}
 
+	/*
 	@Override
 	public String extension() {
 		return "djvu";
 	}
+	*/
 
 	@Override
 	public List<MimeType> mimeTypes() {
 		return MimeType.TYPES_DJVU;
 	}
+
+	@Override
+	public MimeType mimeType(ZLFile file) {
+		return acceptsFile(file) ? MimeType.IMAGE_VND_DJVU : MimeType.NULL;
+	}
 }
diff --git a/src/org/geometerplus/fbreader/filetype/FileTypeEpub.java b/src/org/geometerplus/fbreader/filetype/FileTypeEpub.java
index 25a3bb6a8..4668c9f29 100644
--- a/src/org/geometerplus/fbreader/filetype/FileTypeEpub.java
+++ b/src/org/geometerplus/fbreader/filetype/FileTypeEpub.java
@@ -38,13 +38,25 @@ class FileTypeEpub extends FileType {
 			"opf".equalsIgnoreCase(extension);
 	}
 
+	/*
 	@Override
 	public String extension() {
 		return "epub";
 	}
+	*/
 
 	@Override
 	public List<MimeType> mimeTypes() {
 		return MimeType.TYPES_EPUB;
 	}
+
+	@Override
+	public MimeType mimeType(ZLFile file) {
+		final String extension = file.getExtension();
+		if ("epub".equalsIgnoreCase(extension)) {
+			return MimeType.APP_EPUB_ZIP;
+		}
+		// TODO: process other extensions (?)
+		return MimeType.NULL;
+	}
 }
diff --git a/src/org/geometerplus/fbreader/filetype/FileTypeFB2Zip.java b/src/org/geometerplus/fbreader/filetype/FileTypeFB2Zip.java
index 1a72fd02c..0ee86077b 100644
--- a/src/org/geometerplus/fbreader/filetype/FileTypeFB2Zip.java
+++ b/src/org/geometerplus/fbreader/filetype/FileTypeFB2Zip.java
@@ -31,17 +31,23 @@ class FileTypeFB2Zip extends FileType {
 
 	@Override
 	public boolean acceptsFile(ZLFile file) {
-		// TODO: implement
-		return false;
+		return file.getShortName().toLowerCase().endsWith(".fb2.zip");
 	}
 
+	/*
 	@Override
 	public String extension() {
 		return "fb2.zip";
 	}
+	*/
 
 	@Override
 	public List<MimeType> mimeTypes() {
 		return MimeType.TYPES_FB2_ZIP;
 	}
+
+	@Override
+	public MimeType mimeType(ZLFile file) {
+		return acceptsFile(file) ? MimeType.APP_FB2_ZIP : MimeType.NULL;
+	}
 }
diff --git a/src/org/geometerplus/fbreader/filetype/FileTypeHtml.java b/src/org/geometerplus/fbreader/filetype/FileTypeHtml.java
index b8936144a..41ccbcd78 100644
--- a/src/org/geometerplus/fbreader/filetype/FileTypeHtml.java
+++ b/src/org/geometerplus/fbreader/filetype/FileTypeHtml.java
@@ -35,13 +35,20 @@ class FileTypeHtml extends FileType {
 		return extension.endsWith("html") || "htm".equals(extension);
 	}
 
+	/*
 	@Override
 	public String extension() {
 		return "html";
 	}
+	*/
 
 	@Override
 	public List<MimeType> mimeTypes() {
 		return MimeType.TYPES_HTML;
 	}
+
+	@Override
+	public MimeType mimeType(ZLFile file) {
+		return acceptsFile(file) ? MimeType.TEXT_HTML : MimeType.NULL;
+	}
 }
diff --git a/src/org/geometerplus/fbreader/filetype/FileTypeMobipocket.java b/src/org/geometerplus/fbreader/filetype/FileTypeMobipocket.java
index 2d97a0092..36e41b4ae 100644
--- a/src/org/geometerplus/fbreader/filetype/FileTypeMobipocket.java
+++ b/src/org/geometerplus/fbreader/filetype/FileTypeMobipocket.java
@@ -34,13 +34,20 @@ class FileTypeMobipocket extends FileTypePalm {
 		return "mobi".equalsIgnoreCase(file.getExtension()) || super.acceptsFile(file);
 	}
 
+	/*
 	@Override
 	public String extension() {
 		return "mobi";
 	}
+	*/
 
 	@Override
 	public List<MimeType> mimeTypes() {
 		return MimeType.TYPES_MOBIPOCKET;
 	}
+
+	@Override
+	public MimeType mimeType(ZLFile file) {
+		return acceptsFile(file) ? MimeType.APP_MOBI : MimeType.NULL;
+	}
 }
diff --git a/src/org/geometerplus/fbreader/filetype/FileTypePalm.java b/src/org/geometerplus/fbreader/filetype/FileTypePalm.java
index 82abbd8b7..db30f54dd 100644
--- a/src/org/geometerplus/fbreader/filetype/FileTypePalm.java
+++ b/src/org/geometerplus/fbreader/filetype/FileTypePalm.java
@@ -62,8 +62,10 @@ abstract class FileTypePalm extends FileType {
 			myPalmId.equals(palmFileType(file));
 	}
 
+	/*
 	@Override
 	public String extension() {
 		return "pdb";
 	}
+	*/
 }
diff --git a/src/org/geometerplus/fbreader/filetype/SimpleFileType.java b/src/org/geometerplus/fbreader/filetype/SimpleFileType.java
index 910ff3df5..3c78e0213 100644
--- a/src/org/geometerplus/fbreader/filetype/SimpleFileType.java
+++ b/src/org/geometerplus/fbreader/filetype/SimpleFileType.java
@@ -39,13 +39,20 @@ class SimpleFileType extends FileType {
 		return myExtension.equalsIgnoreCase(file.getExtension());
 	}
 
+	/*
 	@Override
 	public String extension() {
 		return myExtension;
 	}
+	*/
 
 	@Override
 	public List<MimeType> mimeTypes() {
 		return myMimeTypes;
 	}
+
+	@Override
+	public MimeType mimeType(ZLFile file) {
+		return acceptsFile(file) ? myMimeTypes.get(0) : MimeType.NULL;
+	}
 }