diff --git a/src/duckstation-qt/mainwindow.cpp b/src/duckstation-qt/mainwindow.cpp
index c82146a3d..fbddf5f3b 100644
--- a/src/duckstation-qt/mainwindow.cpp
+++ b/src/duckstation-qt/mainwindow.cpp
@@ -31,9 +31,9 @@
 
 static constexpr char DISC_IMAGE_FILTER[] = QT_TRANSLATE_NOOP(
   "MainWindow",
-  "All File Types (*.bin *.img *.cue *.chd *.exe *.psexe *.psf *.m3u);;Single-Track Raw Images (*.bin *.img);;Cue "
-  "Sheets (*.cue);;MAME CHD Images (*.chd);;PlayStation Executables (*.exe *.psexe);;Portable Sound Format Files "
-  "(*.psf);;Playlists (*.m3u)");
+  "All File Types (*.bin *.img *.iso *.cue *.chd *.exe *.psexe *.psf *.m3u);;Single-Track Raw Images (*.bin *.img "
+  "*.iso);;Cue Sheets (*.cue);;MAME CHD Images (*.chd);;PlayStation Executables (*.exe *.psexe);;Portable Sound Format "
+  "Files (*.psf);;Playlists (*.m3u)");
 
 ALWAYS_INLINE static QString getWindowTitle()
 {
diff --git a/src/duckstation-sdl/sdl_host_interface.cpp b/src/duckstation-sdl/sdl_host_interface.cpp
index 65b5abc0a..a1f58bd36 100644
--- a/src/duckstation-sdl/sdl_host_interface.cpp
+++ b/src/duckstation-sdl/sdl_host_interface.cpp
@@ -1732,7 +1732,7 @@ void SDLHostInterface::DoStartDisc()
   Assert(System::IsShutdown());
 
   nfdchar_t* path = nullptr;
-  if (!NFD_OpenDialog("bin,img,cue,chd,exe,psexe,psf", nullptr, &path) || !path || std::strlen(path) == 0)
+  if (!NFD_OpenDialog("bin,img,iso,cue,chd,exe,psexe,psf", nullptr, &path) || !path || std::strlen(path) == 0)
     return;
 
   AddFormattedOSDMessage(2.0f, "Starting disc from '%s'...", path);
@@ -1747,7 +1747,7 @@ void SDLHostInterface::DoChangeDisc()
   Assert(!System::IsShutdown());
 
   nfdchar_t* path = nullptr;
-  if (!NFD_OpenDialog("bin,img,cue,chd", nullptr, &path) || !path || std::strlen(path) == 0)
+  if (!NFD_OpenDialog("bin,img,iso,cue,chd", nullptr, &path) || !path || std::strlen(path) == 0)
     return;
 
   if (System::InsertMedia(path))