diff --git a/crates/arr-core/src/lib.rs b/crates/arr-core/src/lib.rs
index 7ec9229..be1badf 100644
--- a/crates/arr-core/src/lib.rs
+++ b/crates/arr-core/src/lib.rs
@@ -1,4 +1,6 @@
 //! Pure domain types shared by the arr crates.
+//!
+//! This crate must never depend on `axum`, `sqlx` or `reqwest`.
 
 use std::{collections::BTreeMap, path::PathBuf, time::SystemTime};
 
@@ -60,13 +62,27 @@ pub enum Source {
     Other,
 }
 
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub struct DolbyVisionProfile {
+    pub profile: u8,
+    pub compatibility_id: Option<u8>,
+}
+
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum HdrFormat {
     Sdr,
     Hdr10,
     Hdr10Plus,
     Hlg,
-    DolbyVision { profile: u8 },
+    DolbyVision(DolbyVisionProfile),
+}
+
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub enum HdrClaim {
+    Hdr10,
+    Hdr10Plus,
+    Hlg,
+    DolbyVision,
 }
 
 #[derive(Clone, Debug, Eq, PartialEq)]
@@ -77,7 +93,7 @@ pub enum RequiredAudio {
 
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub struct HdrRules {
-    pub rejected_dolby_vision_profiles: Vec<u8>,
+    pub rejected_dolby_vision_profiles: Vec<DolbyVisionProfile>,
 }
 
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
@@ -152,7 +168,7 @@ pub struct ProbedMedia {
 pub enum Rule {
     RequiredAudio,
     DubBlacklist(Language),
-    DolbyVisionProfile(u8),
+    DolbyVisionProfile(DolbyVisionProfile),
     Resolution(Resolution),
     Source(Source),
     Size,
@@ -180,7 +196,7 @@ pub struct MediaFile {
 pub struct ParsedRelease {
     pub resolution: Option<Resolution>,
     pub source: Option<Source>,
-    pub hdr: Vec<HdrFormat>,
+    pub hdr: Vec<HdrClaim>,
     pub audio_languages: Vec<Language>,
 }
 
@@ -241,7 +257,7 @@ pub struct MovieOwner {
 
 #[cfg(test)]
 mod tests {
-    use super::{HdrFormat, Language, Rule, Verdict};
+    use super::{DolbyVisionProfile, HdrFormat, Language, Rule, Verdict};
 
     #[test]
     fn portuguese_variants_are_distinct() {
@@ -252,14 +268,23 @@ mod tests {
     #[test]
     fn dolby_vision_profile_is_preserved() {
         assert_ne!(
-            HdrFormat::DolbyVision { profile: 5 },
-            HdrFormat::DolbyVision { profile: 8 }
+            HdrFormat::DolbyVision(DolbyVisionProfile {
+                profile: 8,
+                compatibility_id: Some(1),
+            }),
+            HdrFormat::DolbyVision(DolbyVisionProfile {
+                profile: 8,
+                compatibility_id: Some(2),
+            })
         );
     }
 
     #[test]
     fn non_eligible_verdicts_name_the_rule() {
-        let rule = Rule::DolbyVisionProfile(5);
+        let rule = Rule::DolbyVisionProfile(DolbyVisionProfile {
+            profile: 5,
+            compatibility_id: None,
+        });
         assert_eq!(Verdict::Rejected(rule.clone()), Verdict::Rejected(rule));
     }
 }