diff --git a/src/lib.rs b/src/lib.rs
index 1915579..dc261df 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -234,7 +234,7 @@ pub struct MovieLibrary {
     root: String,
 }
 
-fn json_metadata_for_path<P: AsRef<OsStr>>(path: P) -> Result<String, Error> {
+fn json_metadata_for_path<P: AsRef<Path> + AsRef<OsStr>>(path: P) -> Result<String, Error> {
     let mut cmd = Command::new("ffprobe");
     // TODO(wathiede): maybe add "-select_streams v"
     cmd.args(&[
@@ -245,8 +245,9 @@ fn json_metadata_for_path<P: AsRef<OsStr>>(path: P) -> Result<String, Error> {
         "-show_format",
         "-show_error",
         "-show_streams",
+        "-i",
     ])
-    .arg(path);
+    .arg(Path::new("./").join(path));
     info!(target: "json", "cmd {:?}", cmd);
     let output = cmd.output()?;
     if output.status.success() {
@@ -385,6 +386,9 @@ impl MovieLibrary {
 
     pub fn update_metadata(&self) -> Result<Vec<String>, Error> {
         let path = Path::new(&self.root).join(FULL_METADATA_FILENAME);
+        // TODO(wathiede): if we fail to parse the old file (i.e. file not found), create an empty
+        // old_metadata and keep going.
+
         // Open the file in read-only mode with buffer.
         let f = File::open(&path).context(format!("open {}", path.display()))?;
         let r = BufReader::new(f);