diff --git a/media-data/src/main/java/com/google/android/horologist/media/data/mapper/MediaPositionMapper.kt b/media-data/src/main/java/com/google/android/horologist/media/data/mapper/MediaPositionMapper.kt
index 52c27e6094..88e75df057 100644
--- a/media-data/src/main/java/com/google/android/horologist/media/data/mapper/MediaPositionMapper.kt
+++ b/media-data/src/main/java/com/google/android/horologist/media/data/mapper/MediaPositionMapper.kt
@@ -30,7 +30,7 @@ public object MediaPositionMapper {
     public fun map(player: Player?): MediaPosition? {
         return if (player == null || player.currentMediaItem == null) {
             null
-        } else if (player.duration == C.TIME_UNSET) {
+        } else if (player.duration == C.TIME_UNSET || player.duration <= 0L) {
             MediaPosition.UnknownDuration(player.currentPosition.milliseconds)
         } else {
             MediaPosition.create(
diff --git a/media-data/src/test/java/com/google/android/horologist/media/data/mapper/MediaPositionMapperTest.kt b/media-data/src/test/java/com/google/android/horologist/media/data/mapper/MediaPositionMapperTest.kt
index 9c008d8634..fcc6552fdd 100644
--- a/media-data/src/test/java/com/google/android/horologist/media/data/mapper/MediaPositionMapperTest.kt
+++ b/media-data/src/test/java/com/google/android/horologist/media/data/mapper/MediaPositionMapperTest.kt
@@ -36,7 +36,7 @@ class MediaPositionMapperTest {
     }
 
     @Test
-    fun `check position calculations unknown duration`() {
+    fun `check position calculation unset results in unknown duration`() {
         fakeStatePlayer.overridePosition(
             currentPosition = 10L,
             duration = C.TIME_UNSET
@@ -46,6 +46,17 @@ class MediaPositionMapperTest {
         assertThat(position.current).isEqualTo(10.milliseconds)
     }
 
+    @Test
+    fun `check position calculation invalid results in unknown duration`() {
+        fakeStatePlayer.overridePosition(
+            currentPosition = 10L,
+            duration = -500L
+        )
+        val position =
+            MediaPositionMapper.map(fakeStatePlayer) as MediaPosition.UnknownDuration
+        assertThat(position.current).isEqualTo(10.milliseconds)
+    }
+
     @Test
     fun `check position calculations past end`() {
         fakeStatePlayer.overridePosition(
diff --git a/media/src/main/java/com/google/android/horologist/media/model/MediaPosition.kt b/media/src/main/java/com/google/android/horologist/media/model/MediaPosition.kt
index 681deffad5..db1a6c94c0 100644
--- a/media/src/main/java/com/google/android/horologist/media/model/MediaPosition.kt
+++ b/media/src/main/java/com/google/android/horologist/media/model/MediaPosition.kt
@@ -48,7 +48,7 @@ public sealed class MediaPosition(
                 "Duration has to be greater than zero [current: $current] [duration: $duration]."
             }
             check(current <= duration) {
-                "Current position has to be greater than duration [current: $current] [duration: $duration]."
+                "Duration can't be less than current position [current: $current] [duration: $duration]."
             }
 
             val percent =