diff --git a/block_device.go b/block_device.go
index f20b65d..2099da8 100644
--- a/block_device.go
+++ b/block_device.go
@@ -22,17 +22,11 @@ func (r remoteImageBackend) ReadAt(p []byte, off int64) (n int, err error) {
 		return 0, errors.New("image not mounted")
 	}
 	source := currentVirtualMediaState.Source
-	mountedImageSize := currentVirtualMediaState.Size
 	virtualMediaStateMutex.RUnlock()
 
 	_, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	readLen := int64(len(p))
-	if off+readLen > mountedImageSize {
-		readLen = mountedImageSize - off
-	}
-
 	switch source {
 	case HTTP:
 		return httpRangeReader.ReadAt(p, off)
diff --git a/ui/src/hooks/stores.ts b/ui/src/hooks/stores.ts
index 819ccc2..a6dc95b 100644
--- a/ui/src/hooks/stores.ts
+++ b/ui/src/hooks/stores.ts
@@ -375,7 +375,7 @@ export const useSettingsStore = create(
 );
 
 export interface RemoteVirtualMediaState {
-  source: "WebRTC" | "HTTP" | "Storage" | null;
+  source: "HTTP" | "Storage" | null;
   mode: "CDROM" | "Disk" | null;
   filename: string | null;
   url: string | null;
diff --git a/usb_mass_storage.go b/usb_mass_storage.go
index 0db4c52..0f1f4b9 100644
--- a/usb_mass_storage.go
+++ b/usb_mass_storage.go
@@ -161,7 +161,6 @@ func rpcCheckMountUrl(url string) (*VirtualMediaUrlInfo, error) {
 type VirtualMediaSource string
 
 const (
-	WebRTC  VirtualMediaSource = "WebRTC"
 	HTTP    VirtualMediaSource = "HTTP"
 	Storage VirtualMediaSource = "Storage"
 )