diff --git a/crates/ec-node/src/main.rs b/crates/ec-node/src/main.rs
index f0065fe..37a7eaa 100644
--- a/crates/ec-node/src/main.rs
+++ b/crates/ec-node/src/main.rs
@@ -5534,13 +5534,25 @@ fn build_hls_segments(records: &[ArchiveIndexRecord]) -> Vec<ArchiveHlsSegment>
     out
 }
 
-fn latest_init_hash(manifest_root: &Path, broadcast_name: &str) -> Result<Option<String>> {
+fn latest_init_hash(
+    manifest_root: &Path,
+    broadcast_name: &str,
+    fallback_track: &str,
+) -> Result<Option<String>> {
     let mut init_records = dedupe_by_group_sequence(read_archive_records(
         manifest_root,
         broadcast_name,
         "init.mp4",
     )?);
-    Ok(init_records.pop().map(|record| record.blake3))
+    if let Some(record) = init_records.pop() {
+        return Ok(Some(record.blake3));
+    }
+    let fallback = dedupe_by_group_sequence(read_archive_records(
+        manifest_root,
+        broadcast_name,
+        fallback_track,
+    )?);
+    Ok(fallback.first().map(|record| record.blake3.clone()))
 }
 
 fn parse_limit(url: &Url) -> Option<usize> {
@@ -5762,11 +5774,12 @@ fn handle_archive_http_request(
             )
         }
         "video.m3u8" if parts.len() == 3 => {
-            let init_hash = match latest_init_hash(&state.manifest_root, &broadcast_name) {
-                Ok(Some(hash)) => hash,
-                Ok(None) => return archive_error(404, "missing init segment"),
-                Err(err) => return archive_error(500, &format!("{err:#}")),
-            };
+            let init_hash =
+                match latest_init_hash(&state.manifest_root, &broadcast_name, "video0.m4s") {
+                    Ok(Some(hash)) => hash,
+                    Ok(None) => return archive_error(404, "missing init segment"),
+                    Err(err) => return archive_error(500, &format!("{err:#}")),
+                };
             let records = match parse_archive_track(
                 &state.manifest_root,
                 &broadcast_name,
@@ -5789,11 +5802,12 @@ fn handle_archive_http_request(
             )
         }
         "audio.m3u8" if parts.len() == 3 => {
-            let init_hash = match latest_init_hash(&state.manifest_root, &broadcast_name) {
-                Ok(Some(hash)) => hash,
-                Ok(None) => return archive_error(404, "missing init segment"),
-                Err(err) => return archive_error(500, &format!("{err:#}")),
-            };
+            let init_hash =
+                match latest_init_hash(&state.manifest_root, &broadcast_name, "audio0.m4s") {
+                    Ok(Some(hash)) => hash,
+                    Ok(None) => return archive_error(404, "missing init segment"),
+                    Err(err) => return archive_error(500, &format!("{err:#}")),
+                };
             let records = match parse_archive_track(
                 &state.manifest_root,
                 &broadcast_name,
@@ -5821,7 +5835,12 @@ fn handle_archive_http_request(
                 .find(|(k, _)| k == "hash")
                 .map(|(_, v)| v.to_string())
                 .or_else(|| {
-                    latest_init_hash(&state.manifest_root, &broadcast_name)
+                    latest_init_hash(&state.manifest_root, &broadcast_name, "video0.m4s")
+                        .ok()
+                        .flatten()
+                })
+                .or_else(|| {
+                    latest_init_hash(&state.manifest_root, &broadcast_name, "audio0.m4s")
                         .ok()
                         .flatten()
                 });