diff --git a/android/app/src/main/kotlin/deckers/thibault/aves/metadata/MultiPage.kt b/android/app/src/main/kotlin/deckers/thibault/aves/metadata/MultiPage.kt
index 25f1bab85..53c5b472d 100644
--- a/android/app/src/main/kotlin/deckers/thibault/aves/metadata/MultiPage.kt
+++ b/android/app/src/main/kotlin/deckers/thibault/aves/metadata/MultiPage.kt
@@ -174,9 +174,7 @@ object MultiPage {
             } else if (xmpMeta.doesPropExist(XMP.GCONTAINER_DIRECTORY_PROP_NAME)) {
                 // `Container` motion photo
                 val count = xmpMeta.countPropArrayItems(XMP.GCONTAINER_DIRECTORY_PROP_NAME)
-                if (count == 2) {
-                    // expect the video to be the second item
-                    val i = 2
+                for (i in 1 until count + 1) {
                     val mime = xmpMeta.getSafeStructField(listOf(XMP.GCONTAINER_DIRECTORY_PROP_NAME, i, XMP.GCONTAINER_ITEM_PROP_NAME, XMP.GCONTAINER_ITEM_MIME_PROP_NAME))?.value
                     val length = xmpMeta.getSafeStructField(listOf(XMP.GCONTAINER_DIRECTORY_PROP_NAME, i, XMP.GCONTAINER_ITEM_PROP_NAME, XMP.GCONTAINER_ITEM_LENGTH_PROP_NAME))?.value
                     if (MimeTypes.isVideo(mime) && length != null) {
diff --git a/android/app/src/main/kotlin/deckers/thibault/aves/metadata/XMP.kt b/android/app/src/main/kotlin/deckers/thibault/aves/metadata/XMP.kt
index 47d2b75f2..e593dd16c 100644
--- a/android/app/src/main/kotlin/deckers/thibault/aves/metadata/XMP.kt
+++ b/android/app/src/main/kotlin/deckers/thibault/aves/metadata/XMP.kt
@@ -188,17 +188,15 @@ object XMP {
             // Container motion photo
             if (doesPropExist(GCONTAINER_DIRECTORY_PROP_NAME)) {
                 val count = countPropArrayItems(GCONTAINER_DIRECTORY_PROP_NAME)
-                if (count == 2) {
-                    var hasImage = false
-                    var hasVideo = false
-                    for (i in 1 until count + 1) {
-                        val mime = getSafeStructField(listOf(GCONTAINER_DIRECTORY_PROP_NAME, i, GCONTAINER_ITEM_PROP_NAME, GCONTAINER_ITEM_MIME_PROP_NAME))?.value
-                        val length = getSafeStructField(listOf(GCONTAINER_DIRECTORY_PROP_NAME, i, GCONTAINER_ITEM_PROP_NAME, GCONTAINER_ITEM_LENGTH_PROP_NAME))?.value
-                        hasImage = hasImage || MimeTypes.isImage(mime) && length != null
-                        hasVideo = hasVideo || MimeTypes.isVideo(mime) && length != null
-                    }
-                    if (hasImage && hasVideo) return true
+                var hasImage = false
+                var hasVideo = false
+                for (i in 1 until count + 1) {
+                    val mime = getSafeStructField(listOf(GCONTAINER_DIRECTORY_PROP_NAME, i, GCONTAINER_ITEM_PROP_NAME, GCONTAINER_ITEM_MIME_PROP_NAME))?.value
+                    val length = getSafeStructField(listOf(GCONTAINER_DIRECTORY_PROP_NAME, i, GCONTAINER_ITEM_PROP_NAME, GCONTAINER_ITEM_LENGTH_PROP_NAME))?.value
+                    hasImage = hasImage || MimeTypes.isImage(mime) && length != null
+                    hasVideo = hasVideo || MimeTypes.isVideo(mime) && length != null
                 }
+                if (hasImage && hasVideo) return true
             }
 
             return false
diff --git a/lib/ref/metadata/xmp.dart b/lib/ref/metadata/xmp.dart
index 7548cdc13..fa2dbdb13 100644
--- a/lib/ref/metadata/xmp.dart
+++ b/lib/ref/metadata/xmp.dart
@@ -37,6 +37,7 @@ class XmpNamespaces {
   static const gettyImagesGift = 'http://xmp.gettyimages.com/gift/1.0/';
   static const gimp210 = 'http://www.gimp.org/ns/2.10/';
   static const gimpXmp = 'http://www.gimp.org/xmp/';
+  static const hdrgm = 'http://ns.adobe.com/hdr-gain-map/1.0/';
   static const illustrator = 'http://ns.adobe.com/illustrator/1.0/';
   static const iptc4xmpCore = 'http://iptc.org/std/Iptc4xmpCore/1.0/xmlns/';
   static const iptc4xmpExt = 'http://iptc.org/std/Iptc4xmpExt/2008-02-29/';
diff --git a/lib/view/src/xmp.dart b/lib/view/src/xmp.dart
index e2f185726..438a5d4fe 100644
--- a/lib/view/src/xmp.dart
+++ b/lib/view/src/xmp.dart
@@ -34,6 +34,7 @@ class XmpNamespaceView {
     XmpNamespaces.gettyImagesGift: 'Getty Images',
     XmpNamespaces.gimp210: 'GIMP 2.10',
     XmpNamespaces.gimpXmp: 'GIMP',
+    XmpNamespaces.hdrgm: 'HDR Gain Map',
     XmpNamespaces.illustrator: 'Illustrator',
     XmpNamespaces.iptc4xmpCore: 'IPTC Core',
     XmpNamespaces.iptc4xmpExt: 'IPTC Extension',