diff --git a/headers/private/storage/DiskDevice.h b/headers/private/storage/DiskDevice.h
index 0ccc5dba9d..0b5f3b022d 100644
--- a/headers/private/storage/DiskDevice.h
+++ b/headers/private/storage/DiskDevice.h
@@ -15,8 +15,10 @@ public:
 	BDiskDevice();
 	virtual ~BDiskDevice();
 
-	bool IsRemovable() const;
 	bool HasMedia() const;
+	bool IsRemovableMedia() const;
+	bool IsReadOnlyMedia() const;
+	bool IsWriteOnceMedia() const;
 
 	status_t Eject(bool update = false);
 
diff --git a/src/kits/storage/DiskDevice.cpp b/src/kits/storage/DiskDevice.cpp
index 89530ece44..6f97f692e1 100644
--- a/src/kits/storage/DiskDevice.cpp
+++ b/src/kits/storage/DiskDevice.cpp
@@ -41,17 +41,6 @@ BDiskDevice::~BDiskDevice()
 {
 }
 
-// IsRemovable
-/*!	\brief Returns whether the device media are removable.
-	\return \c true, if the device media are removable, \c false otherwise.
-*/
-bool
-BDiskDevice::IsRemovable() const
-{
-	return (fDeviceData
-			&& fDeviceData->device_flags & B_DISK_DEVICE_REMOVABLE);
-}
-
 // HasMedia
 /*!	\brief Returns whether the device contains a media.
 	\return \c true, if the device contains a media, \c false otherwise.
@@ -63,6 +52,33 @@ BDiskDevice::HasMedia() const
 			&& fDeviceData->device_flags & B_DISK_DEVICE_HAS_MEDIA);
 }
 
+// IsRemovableMedia
+/*!	\brief Returns whether the device media are removable.
+	\return \c true, if the device media are removable, \c false otherwise.
+*/
+bool
+BDiskDevice::IsRemovableMedia() const
+{
+	return (fDeviceData
+			&& fDeviceData->device_flags & B_DISK_DEVICE_REMOVABLE);
+}
+
+// IsReadOnlyMedia
+bool
+BDiskDevice::IsReadOnlyMedia() const
+{
+	return (fDeviceData
+			&& fDeviceData->device_flags & B_DISK_DEVICE_READ_ONLY);
+}
+
+// IsWriteOnceMedia
+bool
+BDiskDevice::IsWriteOnceMedia() const
+{
+	return (fDeviceData
+			&& fDeviceData->device_flags & B_DISK_DEVICE_WRITE_ONCE);
+}
+
 // Eject
 /*!	\brief Eject the device's media.