diff --git a/.gitignore b/.gitignore
index 1b5f0fb..4aa4fc7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,7 @@
 .zed
 .history
 upload
-*.exe
+# *.exe  (uncomment if needed to exclude all .exe files)
 *.db
 build
 *.db-journal
@@ -34,6 +34,3 @@ redis_data/
 .gomodcache/
 .gocache-temp
 .gopath
-
-# ffprobe binaries (too large for git)
-service/ffprobe-bin/
diff --git a/service/ffprobe-bin/README.md b/service/ffprobe-bin/README.md
new file mode 100644
index 0000000..807fc16
--- /dev/null
+++ b/service/ffprobe-bin/README.md
@@ -0,0 +1,17 @@
+Place platform ffprobe binaries here for embedded build mode.
+
+Expected files:
+
+- `windows-amd64/ffprobe.exe`
+- `linux-amd64/ffprobe`
+- `linux-arm64/ffprobe`
+
+Build with:
+
+`go build -tags embed_ffprobe .`
+
+If not using `embed_ffprobe`, the service falls back to:
+
+1. Side-by-side ffprobe file
+2. ffprobe from PATH
+3. HTTP range metadata parser
diff --git a/service/ffprobe-bin/linux-amd64/ffprobe b/service/ffprobe-bin/linux-amd64/ffprobe
new file mode 100644
index 0000000..4c2063a
Binary files /dev/null and b/service/ffprobe-bin/linux-amd64/ffprobe differ
diff --git a/service/ffprobe-bin/linux-arm64/ffprobe b/service/ffprobe-bin/linux-arm64/ffprobe
new file mode 100644
index 0000000..3e1fa66
Binary files /dev/null and b/service/ffprobe-bin/linux-arm64/ffprobe differ
diff --git a/service/ffprobe-bin/windows-amd64/ffprobe.exe b/service/ffprobe-bin/windows-amd64/ffprobe.exe
new file mode 100644
index 0000000..a24c086
Binary files /dev/null and b/service/ffprobe-bin/windows-amd64/ffprobe.exe differ