diff --git a/packages/core/src/db/schemas.ts b/packages/core/src/db/schemas.ts
index 357e1fd6..6d68bf5d 100644
--- a/packages/core/src/db/schemas.ts
+++ b/packages/core/src/db/schemas.ts
@@ -644,12 +644,22 @@ export const AddonCatalogResponseSchema = z.object({
 export type AddonCatalogResponse = z.infer<typeof AddonCatalogResponseSchema>;
 export type AddonCatalog = z.infer<typeof AddonCatalogSchema>;
 
-export const ExtrasTypesSchema = z.enum(['skip', 'genre', 'search']);
+export const ExtrasTypesSchema = z.enum([
+  'skip',
+  'genre',
+  'search',
+  'filename',
+  'videoHash',
+  'videoSize',
+]);
 export type ExtrasTypes = z.infer<typeof ExtrasTypesSchema>;
 export const ExtrasSchema = z.object({
   skip: z.coerce.number().optional(),
   genre: z.string().optional(),
   search: z.string().optional(),
+  filename: z.string().optional(),
+  videoHash: z.string().optional(),
+  videoSize: z.coerce.number().optional(),
 });
 export type Extras = z.infer<typeof ExtrasSchema>;
 
diff --git a/packages/core/src/main.ts b/packages/core/src/main.ts
index 72b1dc39..0febe058 100644
--- a/packages/core/src/main.ts
+++ b/packages/core/src/main.ts
@@ -13,7 +13,7 @@ import {
   getTimeTakenSincePoint,
   maskSensitiveInfo,
   Cache,
-  CatalogExtras,
+  ExtrasParser,
   TMDBMetadata,
   Metadata,
   makeUrlLogSafe,
@@ -318,7 +318,7 @@ export class AIOStreams {
       // reset the type from the request (which is the overriden type) to the actual type
       type = modification.type;
     }
-    const parsedExtras = new CatalogExtras(extras);
+    const parsedExtras = new ExtrasParser(extras);
     logger.debug(`Parsed extras: ${JSON.stringify(parsedExtras)}`);
     if (parsedExtras.genre === 'None') {
       logger.debug(`Genre extra is None, removing genre extra`);
@@ -592,6 +592,8 @@ export class AIOStreams {
         }
       }
     }
+    const parsedExtras = new ExtrasParser(extras);
+    logger.debug(`Parsed extras: ${JSON.stringify(parsedExtras)}`);
 
     // Request subtitles from all supported addons in parallel
     let errors: AIOStreamsError[] = this.addonInitialisationErrors.map(
@@ -608,7 +610,7 @@ export class AIOStreams {
           const subtitles = await new Wrapper(addon).getSubtitles(
             type,
             id,
-            extras
+            parsedExtras.toString()
           );
           if (subtitles) {
             allSubtitles.push(...subtitles);
diff --git a/packages/core/src/utils/catalogExtras.ts b/packages/core/src/utils/extras.ts
similarity index 94%
rename from packages/core/src/utils/catalogExtras.ts
rename to packages/core/src/utils/extras.ts
index 2182ef87..c12b31fe 100644
--- a/packages/core/src/utils/catalogExtras.ts
+++ b/packages/core/src/utils/extras.ts
@@ -1,6 +1,6 @@
 import { Extras, ExtrasSchema, ExtrasTypesSchema } from '../db/schemas';
 
-export class CatalogExtras {
+export class ExtrasParser {
   private extras: Partial<Extras>;
 
   constructor(extras?: string) {
@@ -13,7 +13,7 @@ export class CatalogExtras {
     }
     const mapped = extras.split('&').map((e) => {
       const [key, value] = e.split('=');
-      return { key, value };
+      return { key, value: encodeURIComponent(value) };
     });
     const extrasObject = Object.fromEntries(
       mapped.map(({ key, value }) => {
diff --git a/packages/core/src/utils/index.ts b/packages/core/src/utils/index.ts
index 6a0d89d2..c4bf4135 100644
--- a/packages/core/src/utils/index.ts
+++ b/packages/core/src/utils/index.ts
@@ -12,5 +12,5 @@ export * from './config';
 export * from './languages';
 export * from './dsu';
 export * from './startup';
-export * from './catalogExtras';
+export * from './extras';
 export * from './rpdb';