diff --git a/src/tape/inventory.rs b/src/tape/inventory.rs
index b8ab149f..cc3872fd 100644
--- a/src/tape/inventory.rs
+++ b/src/tape/inventory.rs
@@ -32,6 +32,7 @@ use crate::{
     tape::{
         TAPE_STATUS_DIR,
         OnlineStatusMap,
+        MediaSet,
         file_formats::{
             MediaLabel,
             MediaSetLabel,
@@ -49,79 +50,6 @@ pub struct MediaId {
     pub media_set_label: Option<MediaSetLabel>,
 }
 
-/// Media Set
-///
-/// A List of backup media
-#[derive(Debug, Serialize, Deserialize)]
-pub struct MediaSet {
-    /// Unique media set ID
-    uuid: Uuid,
-    /// List of BackupMedia
-    media_list: Vec<Option<Uuid>>,
-}
-
-impl MediaSet {
-
-    pub const MEDIA_SET_MAX_SEQ_NR: u64 = 100;
-
-    pub fn new() -> Self {
-        let uuid = Uuid::generate();
-        Self {
-            uuid,
-            media_list: Vec::new(),
-        }
-    }
-
-    pub fn with_data(uuid: Uuid, media_list: Vec<Option<Uuid>>) -> Self {
-        Self { uuid, media_list }
-    }
-
-    pub fn uuid(&self) -> &Uuid {
-        &self.uuid
-    }
-
-    pub fn media_list(&self) -> &[Option<Uuid>] {
-        &self.media_list
-    }
-
-    pub fn add_media(&mut self, uuid: Uuid) {
-        self.media_list.push(Some(uuid));
-    }
-
-    pub fn insert_media(&mut self, uuid: Uuid, seq_nr: u64) -> Result<(), Error> {
-        if seq_nr > Self::MEDIA_SET_MAX_SEQ_NR {
-            bail!("media set sequence number to large in media set {} ({} > {})",
-                  self.uuid.to_string(), seq_nr, Self::MEDIA_SET_MAX_SEQ_NR);
-        }
-        let seq_nr = seq_nr as usize;
-        if self.media_list.len() > seq_nr {
-            if self.media_list[seq_nr].is_some() {
-                bail!("found duplicate squence number in media set '{}/{}'",
-                      self.uuid.to_string(), seq_nr);
-            }
-        } else {
-            self.media_list.resize(seq_nr + 1, None);
-        }
-        self.media_list[seq_nr] = Some(uuid);
-        Ok(())
-    }
-
-    pub fn last_media_uuid(&self) -> Option<&Uuid> {
-        match self.media_list.last() {
-            None => None,
-            Some(None) => None,
-            Some(Some(ref last_uuid)) => Some(last_uuid),
-        }
-    }
-
-    pub fn is_last_media(&self, uuid: &Uuid) -> bool {
-        match self.media_list.last() {
-            None => false,
-            Some(None) => false,
-            Some(Some(last_uuid)) => uuid == last_uuid,
-        }
-    }
-}
 
 #[derive(Serialize,Deserialize)]
 struct MediaStateEntry {
diff --git a/src/tape/media_set.rs b/src/tape/media_set.rs
new file mode 100644
index 00000000..0cef10b7
--- /dev/null
+++ b/src/tape/media_set.rs
@@ -0,0 +1,76 @@
+use anyhow::{bail, Error};
+use serde::{Serialize, Deserialize};
+
+use proxmox::tools::Uuid;
+
+/// MediaSet - Ordered group of media
+#[derive(Debug, Serialize, Deserialize)]
+pub struct MediaSet {
+    /// Unique media set ID
+    uuid: Uuid,
+    /// List of member media IDs
+    media_list: Vec<Option<Uuid>>,
+}
+
+impl MediaSet {
+
+    pub const MEDIA_SET_MAX_SEQ_NR: u64 = 100;
+
+    pub fn new() -> Self {
+        let uuid = Uuid::generate();
+        Self {
+            uuid,
+            media_list: Vec::new(),
+        }
+    }
+
+    pub fn with_data(uuid: Uuid, media_list: Vec<Option<Uuid>>) -> Self {
+        Self { uuid, media_list }
+    }
+
+    pub fn uuid(&self) -> &Uuid {
+        &self.uuid
+    }
+
+    pub fn media_list(&self) -> &[Option<Uuid>] {
+        &self.media_list
+    }
+
+    pub fn add_media(&mut self, uuid: Uuid) {
+        self.media_list.push(Some(uuid));
+    }
+
+    pub fn insert_media(&mut self, uuid: Uuid, seq_nr: u64) -> Result<(), Error> {
+        if seq_nr > Self::MEDIA_SET_MAX_SEQ_NR {
+            bail!("media set sequence number to large in media set {} ({} > {})",
+                  self.uuid.to_string(), seq_nr, Self::MEDIA_SET_MAX_SEQ_NR);
+        }
+        let seq_nr = seq_nr as usize;
+        if self.media_list.len() > seq_nr {
+            if self.media_list[seq_nr].is_some() {
+                bail!("found duplicate squence number in media set '{}/{}'",
+                      self.uuid.to_string(), seq_nr);
+            }
+        } else {
+            self.media_list.resize(seq_nr + 1, None);
+        }
+        self.media_list[seq_nr] = Some(uuid);
+        Ok(())
+    }
+
+    pub fn last_media_uuid(&self) -> Option<&Uuid> {
+        match self.media_list.last() {
+            None => None,
+            Some(None) => None,
+            Some(Some(ref last_uuid)) => Some(last_uuid),
+        }
+    }
+
+    pub fn is_last_media(&self, uuid: &Uuid) -> bool {
+        match self.media_list.last() {
+            None => false,
+            Some(None) => false,
+            Some(Some(last_uuid)) => uuid == last_uuid,
+        }
+    }
+}
diff --git a/src/tape/mod.rs b/src/tape/mod.rs
index 485ffc66..2729eef9 100644
--- a/src/tape/mod.rs
+++ b/src/tape/mod.rs
@@ -20,6 +20,9 @@ pub use tape_read::*;
 mod helpers;
 pub use helpers::*;
 
+mod media_set;
+pub use media_set::*;
+
 mod inventory;
 pub use inventory::*;