Stop naming specific commercial discs in comments and tests

Fifteen references across six files named the discs a defect was first
seen on. The parser leak found earlier was not an isolated slip — the
same habit runs through the mux comments, the changelog and the AACS
content verdict, where a title name was standing in for the shape of
the problem.

Every one is replaced with the property that actually mattered: a
multi-clip title, a UHD Dolby Vision profile 7 dual-layer stream, a
disc carrying an authored-bad TS packet. The comments are more useful
for it — the reader needs to recognise the shape on a disc they have,
not the one we happened to have.

`SEG_MainFeature` stays: the parser matches on that literal, so it is
a format token rather than a title.

CHANGELOG.md

@@ -1119,7 +1119,7 @@ consumers are the in-tree toolchain crates.
   The direct-to-MKV path now gives the drive its full ECC recovery budget on a
   bad sector (matching the multipass rip) instead of reporting a read failure a
   multipass rip would have recovered.
-- **4K decode glitches at non-seamless clip joins fixed (Top Gun class).**
+- **4K decode glitches at non-seamless clip joins fixed.**
   Titles assembled from clips joined at non-seamless boundaries no longer drop
   reference frames at the join ("Could not find ref" stutter); the splice
   keyframe is rewritten so the decoder discards only the genuinely-dangling

src/aacs/content.rs

@@ -875,7 +875,7 @@ mod tests {
 
     // ── Defect-tolerant "did a key OPEN this unit?" verdict ─────────────────
     //
-    // The Bourne-UHD bug: a commercial disc carries the odd authored-bad TS
+    // The authored-bad-packet bug: a commercial disc carries the odd bad TS
     // packet (a pressing/encoding defect, or an AACS 2.1 forensic-variant frame)
     // — one non-conforming packet inside an otherwise perfectly-decrypted 6144
     // unit. The OLD strict per-packet acceptance rejected the WHOLE unit over

src/mux/codec/dts.rs

@@ -967,7 +967,7 @@ mod tests {
         // mark this boundary ext_clean=false and the parser must emit the clean
         // 512-byte CORE alone (dropping the garbage), draining to the next core.
         let core = make_dts_core(512);
-        let garbage = vec![0xE4, 0x3F, 0xE3, 0x90, 0xCC, 0x6C]; // real Bourne head bytes
+        let garbage = vec![0xE4, 0x3F, 0xE3, 0x90, 0xCC, 0x6C]; // real head bytes from a damaged stream
         let mut garbage = garbage;
         garbage.extend(std::iter::repeat_n(0xAB, 300));
         let next = make_dts_core(512);
@@ -2222,7 +2222,7 @@ mod tests {
     /// Real-data fixture (ignored). Re-parses a raw `.dts` elementary stream
     /// through `DtsParser` and writes the emitted access units back out, so the
     /// garbage-extension → core-only drop can be validated against an actual
-    /// damaged stream (e.g. the extracted Bourne DTS-HD MA track) end-to-end
+    /// damaged stream (e.g. an extracted DTS-HD MA track) end-to-end
     /// with an external DTS decoder. Env: `DTS_IN` (input), `DTS_OUT` (output).
     ///   cargo test --lib dts::tests::reparse_real_dts_file -- --ignored --nocapture
     #[test]

src/mux/codec/hevc.rs

@@ -533,8 +533,8 @@ impl CodecParser for HevcParser {
         // CRA→BLA rewrite (`pending_clip_boundary`) the first IRAP of the new
         // clip then consumes. Without this, the splice CRA's RASL leading
         // pictures reference pre-join frames gone after concatenation and a
-        // linear decoder floods "Could not find ref with POC N" (the Top Gun
+        // linear decoder floods "Could not find ref with POC N" (the UHD
-        // UHD defect). Uses the 90 kHz PES PTS (not the rebased mux timeline)
+        // multi-clip defect). Uses the 90 kHz PES PTS (not the rebased mux timeline)
         // UNWRAPPED onto a monotonic 64-bit timeline first — the raw 33-bit PTS
         // wraps every ~26.5 h, and a single-clip title that crosses 2^33→0 would
         // otherwise false-arm the rewrite (corrupting a legitimate in-clip CRA).
@@ -2197,7 +2197,7 @@ mod tests {
         );
     }
 
-    /// Regression for the "TopGun bug" (Top Gun 1986 UHD, DV P7 dual-layer):
+    /// Regression for a UHD Dolby Vision profile 7 dual-layer title:
     /// a multi-clip title is read as one concatenated stream and the mpls
     /// connection_condition is never plumbed to the parser, so the splice CRA
     /// opening the next clip kept its dangling RASL leading pictures and a

src/mux/codec/truehd.rs

@@ -403,8 +403,7 @@ impl CodecParser for TrueHdParser {
             //    global offset for the new epoch (driven by the video
             //    back-jump) the stranded-high audio PTS is flung ~a whole
             //    clip past the frontier, producing the non-monotonic
-            //    audio-DTS band on multi-clip titles (Dune: Part Two, Top
+            //    audio-DTS band on multi-clip titles. ADOPT the raw reset so the per-track raw PTS that
-            //    Gun). ADOPT the raw reset so the per-track raw PTS that
             //    reaches `TimelineContinuity` carries the true boundary, and
             //    the corrector rebases it exactly as it already does for the
             //    DTS / AC-3 parsers (which never clamp). Same threshold the
@@ -1304,7 +1303,7 @@ mod tests {
         // When the buffer empties exactly on that boundary, an unconditional
         // reset to the PES PTS snapped the next AU's timestamp BELOW the AU just
         // emitted — the non-monotonic block timestamps a muxer rejects (the
-        // Top Gun / Dune: Part Two case). The reset must clamp forward-only.
+        // multi-clip UHD case). The reset must clamp forward-only.
         let mut parser = TrueHdParser::new();
         let au = make_truehd_unit(100);
         // PES1: three complete AUs at pts 90000 — buffer empties, cadence runs
@@ -1329,7 +1328,7 @@ mod tests {
 
     #[test]
     fn clip_boundary_pts_reset_is_adopted_not_clamped() {
-        // Regression (Dune: Part Two / Top Gun non-monotonic audio-DTS band):
+        // Regression (multi-clip non-monotonic audio-DTS band):
         // a title's clips are read as one concatenated stream, so at a
         // non-seamless boundary the source PES PTS resets near zero — a LARGE
         // backward step (> DISCONTINUITY_BACKSTEP_NS), NOT muxer jitter. The

src/mux/mkv.rs

@@ -1373,7 +1373,7 @@ impl<W: Write + Seek> MkvMuxer<W> {
         // with the base layer's. The two video PTS sequences overlap, so the EL's
         // frames look like multi-second backward jumps against the base layer's
         // frontier and would false-trigger an epoch reset on every GOP (the exact
-        // ratchet that inflated Top Gun's 1-clip timeline to ~7 h). Only the base
+        // ratchet that inflated a 1-clip timeline to ~7 h). Only the base
         // video layer establishes/advances the frontier and opens epochs; the EL
         // — like audio and subtitles — rides the current offset.
         let drives_epoch = Some(track_idx) == self.primary_video_track;

src/mux/timeline.rs

@@ -32,14 +32,14 @@ pub(crate) const DISCONTINUITY_GAP_NS: i64 = 1_000_000;
 /// boundary resets every stream together by the same delta.
 ///
 /// **Only the VIDEO track drives epoch decisions.** A title carries one video
-/// track plus many interleaved audio + subtitle tracks (Top Gun UHD: 2 video,
+/// track plus many interleaved audio + subtitle tracks (one UHD title: 2 video,
 /// 11 audio, 32 PGS). Those non-video tracks are sparse and lag the video by
 /// seconds, so their raw PTS swing well over the 3 s discontinuity threshold
 /// against a shared frontier even within a SINGLE clip — a late subtitle PTS
 /// would ratchet `high_ns` up, then the next normal video frame would sit >3 s
 /// below it and be misread as a clip boundary, permanently bumping `offset_ns`.
 /// That false-positive ratchet (firing thousands of times on a one-clip title)
-/// inflated Top Gun's cluster/Cue timestamps into the billions of ms and
+/// inflated that title's cluster/Cue timestamps into the billions of ms and
 /// destroyed its seek index. The clip-boundary INFERENCE is therefore keyed on
 /// video PTS alone: video establishes and advances the frontier and is the only
 /// track that can open a new epoch. Non-video frames are remapped under the
@@ -200,7 +200,7 @@ mod tests {
     /// Characterization of the BUG: a BD title's two clips concatenated with a
     /// PTS reset at the boundary. WITHOUT correction the raw VIDEO timeline goes
     /// hard backward at clip 2 (what produced the non-monotonic-DTS band on
-    /// Dune / Top Gun). WITH `TimelineContinuity` the output is monotonic and
+    /// multi-clip UHD titles). WITH `TimelineContinuity` the output is monotonic and
     /// continuous across the boundary. The boundary is driven by VIDEO.
     #[test]
     fn continuity_rebases_clip_boundary_reset() {
@@ -256,7 +256,7 @@ mod tests {
 
     /// PRIMARY rc3 regression: a sparse, lagging NON-VIDEO track (PGS subtitle /
     /// trailing audio) on a SINGLE-clip title must NOT inflate `offset_ns`. This
-    /// is the exact false-positive that destroyed Top Gun's seek index: with a
+    /// is the exact false-positive that destroyed a real title's seek index: with a
     /// shared frontier, a late subtitle PTS ratcheted the frontier up, then the
     /// next normal video frame sat >3s below it and was misread as a clip
     /// boundary, permanently bumping the offset — thousands of times, until the
@@ -307,7 +307,7 @@ mod tests {
     /// PASSIVE rider (drives_epoch == false): if it drove epochs, every EL GOP
     /// would look like a multi-second backward jump against the base-layer
     /// frontier and false-trigger a clip-boundary reset — the exact ratchet that
-    /// inflated Top Gun's 1-clip 1h49m timeline to ~7 h. Here the base layer
+    /// inflated a 1-clip 1h49m timeline to ~7 h. Here the base layer
     /// advances 0..60s while the EL re-emits the SAME 0..60s interleaved; the
     /// timeline must stay at 60s with offset 0.
     #[test]
@@ -363,7 +363,7 @@ mod tests {
         );
     }
 
-    /// Regression for the original Top Gun band: a LARGE, real-magnitude
+    /// Regression for the originally-reported band: a LARGE, real-magnitude
     /// clip-boundary back-jump on VIDEO (clip 1 ≈ 13 min, clip 2 resets to 0)
     /// must STILL be rebased to one continuous monotonic timeline — the genuine
     /// multi-clip seamless behaviour is preserved, now keyed on real video