diff --git a/types/media-typer/index.d.ts b/types/media-typer/index.d.ts
index 68254fdb0c..fdfd8e72b7 100644
--- a/types/media-typer/index.d.ts
+++ b/types/media-typer/index.d.ts
@@ -1,13 +1,44 @@
-// Type definitions for media-typer 0.3
+// Type definitions for media-typer 1.1
 // Project: https://github.com/jshttp/media-typer
 // Definitions by: BendingBender <https://github.com/BendingBender>
+//                 Piotr Błażejewicz <https://github.com/peterblazejewicz>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
+/**
+ * Simple RFC 6838 media type parser.
+ * This module will parse a given media type into its component parts, like type, subtype, and suffix.
+ * A formatter is also provided to put them back together and the two can be combined to normalize media types into a canonical form.
+ * If you are looking to parse the string that represents a media type and its parameters in HTTP (for example, the Content-Type header), use the content-type module
+ */
+
+/**
+ * Parse a media type string
+ * @throws TypeError If the given type string is invalid
+ */
 export function parse(mediaType: string): MediaType;
+/**
+ * Format an object into a media type string.
+ * This will return a string of the mime type for the given object
+ * @throws TypeError If any of the given object values are invalid
+ */
 export function format(mediaTypeDescriptor: MediaType): string;
 
+/**
+ * Validate a media type string
+ */
+export function test(mediaType: string): boolean;
+
 export interface MediaType {
+    /**
+     * The type of the media type (always lower case). Example: `image`
+     */
     type: string;
+    /**
+     * The subtype of the media type (always lower case). Example: `svg`
+     */
     subtype: string;
+    /**
+     * The suffix of the media type (always lower case). Example: `xml`
+     */
     suffix?: string;
 }
diff --git a/types/media-typer/media-typer-tests.ts b/types/media-typer/media-typer-tests.ts
index de5c744d14..a0bee6d3f0 100644
--- a/types/media-typer/media-typer-tests.ts
+++ b/types/media-typer/media-typer-tests.ts
@@ -1,4 +1,4 @@
-import * as typer from 'media-typer';
+import typer = require('media-typer');
 
 const obj = typer.parse('image/svg+xml');
 // $ExpectType MediaType
@@ -11,5 +11,8 @@ obj.subtype;
 obj.suffix;
 
 // $ExpectType string
-typer.format({type: 'image', subtype: 'svg', suffix: 'xml'});
-typer.format({type: 'image', subtype: 'svg'});
+typer.format({ type: 'image', subtype: 'svg', suffix: 'xml' });
+typer.format({ type: 'image', subtype: 'svg' });
+
+// $ExpectType boolean
+const valid = typer.test('image/svg+xml');
diff --git a/types/media-typer/tsconfig.json b/types/media-typer/tsconfig.json
index fe5268288d..f7975d9a73 100644
--- a/types/media-typer/tsconfig.json
+++ b/types/media-typer/tsconfig.json
@@ -20,4 +20,4 @@
         "index.d.ts",
         "media-typer-tests.ts"
     ]
-}
\ No newline at end of file
+}
diff --git a/types/media-typer/v0/index.d.ts b/types/media-typer/v0/index.d.ts
new file mode 100644
index 0000000000..68254fdb0c
--- /dev/null
+++ b/types/media-typer/v0/index.d.ts
@@ -0,0 +1,13 @@
+// Type definitions for media-typer 0.3
+// Project: https://github.com/jshttp/media-typer
+// Definitions by: BendingBender <https://github.com/BendingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export function parse(mediaType: string): MediaType;
+export function format(mediaTypeDescriptor: MediaType): string;
+
+export interface MediaType {
+    type: string;
+    subtype: string;
+    suffix?: string;
+}
diff --git a/types/media-typer/v0/media-typer-tests.ts b/types/media-typer/v0/media-typer-tests.ts
new file mode 100644
index 0000000000..de5c744d14
--- /dev/null
+++ b/types/media-typer/v0/media-typer-tests.ts
@@ -0,0 +1,15 @@
+import * as typer from 'media-typer';
+
+const obj = typer.parse('image/svg+xml');
+// $ExpectType MediaType
+obj;
+// $ExpectType string
+obj.type;
+// $ExpectType string
+obj.subtype;
+// $ExpectType string | undefined
+obj.suffix;
+
+// $ExpectType string
+typer.format({type: 'image', subtype: 'svg', suffix: 'xml'});
+typer.format({type: 'image', subtype: 'svg'});
diff --git a/types/media-typer/v0/tsconfig.json b/types/media-typer/v0/tsconfig.json
new file mode 100644
index 0000000000..eed77891e0
--- /dev/null
+++ b/types/media-typer/v0/tsconfig.json
@@ -0,0 +1,28 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../../",
+        "typeRoots": [
+            "../../"
+        ],
+        "paths": {
+            "media-typer": [
+                "media-typer/v0"
+            ]
+        },
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "media-typer-tests.ts"
+    ]
+}
diff --git a/types/media-typer/v0/tslint.json b/types/media-typer/v0/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/media-typer/v0/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }