diff --git a/schemas/emulator.schema.json b/schemas/emulator.schema.json
index 8d073676..bc6fa4a3 100644
--- a/schemas/emulator.schema.json
+++ b/schemas/emulator.schema.json
@@ -286,6 +286,11 @@
             "items": {"type": "string"},
             "description": "Platforms (registry keys) whose package leaves out a file the emulator's release bundles, so their packs bring it."
           },
+          "unread_on": {
+            "type": "array",
+            "items": {"type": "string"},
+            "description": "Platforms (registry keys) whose launcher points the emulator at other files, so this entry is never opened there."
+          },
           "source_ref": {
             "type": "string"
           }
@@ -470,6 +475,11 @@
             "items": {"type": "string"},
             "description": "Platforms (registry keys) whose package leaves out a file the emulator's release bundles, so their packs bring it."
           },
+          "unread_on": {
+            "type": "array",
+            "items": {"type": "string"},
+            "description": "Platforms (registry keys) whose launcher points the emulator at other files, so this entry is never opened there."
+          },
           "config_key": {
             "type": "string"
           },
diff --git a/scripts/generate_site.py b/scripts/generate_site.py
index ff77f7b5..22b6a062 100644
--- a/scripts/generate_site.py
+++ b/scripts/generate_site.py
@@ -2861,6 +2861,9 @@ def _render_emulator_file(
     if f.get("not_bundled_on"):
         details.append("Left out by the platform's package, so the pack brings it, on: "
                        + ", ".join(sorted(f["not_bundled_on"])))
+    if f.get("unread_on"):
+        details.append("Never opened on these platforms, whose launcher names other files: "
+                       + ", ".join(sorted(f["unread_on"])))
     if source_ref:
         asker = requested_by(profile, source_ref)
         if asker:
diff --git a/scripts/validation.py b/scripts/validation.py
index 9a6a5967..e3ba678c 100644
--- a/scripts/validation.py
+++ b/scripts/validation.py
@@ -539,6 +539,16 @@ def installed_with_emulator(entry: dict, platform: str = "") -> bool:
     return bool(entry.get("bundled")) and platform not in (entry.get("not_bundled_on") or [])
 
 
+def unread_on(entry: dict, platform: str) -> bool:
+    """Whether this platform's launcher points the emulator at other files.
+
+    RetroBat starts standalone BlastEm with absolute paths to its own BIOS
+    names in the config it writes, so the defaults the emulator would read
+    (cdbios.bin, colecovision_bios.col) are never opened there.
+    """
+    return bool(platform) and platform in (entry.get("unread_on") or [])
+
+
 def deliverable(entries: list[dict], standalone: bool, platform: str = "") -> list[dict]:
     """The entries of one build a pack has to bring.
 
@@ -549,7 +559,7 @@ def deliverable(entries: list[dict], standalone: bool, platform: str = "") -> li
     """
     return [
         e for e in filter_files_by_mode(entries, standalone)
-        if not installed_with_emulator(e, platform)
+        if not installed_with_emulator(e, platform) and not unread_on(e, platform)
     ]
 
 
diff --git a/scripts/verify.py b/scripts/verify.py
index f7fcbb9a..5735669d 100644
--- a/scripts/verify.py
+++ b/scripts/verify.py
@@ -97,6 +97,7 @@ from validation import (
     deliverable,
     filter_files_by_mode,
     installed_with_emulator,
+    unread_on,
     outside_gap_scope,
 )
 
@@ -540,7 +541,7 @@ def find_undeclared_files(
                     f.get("variant_group"),
                     region_key,
                 )
-                if not fname:
+                if not fname or unread_on(f, config.get("_key", "")):
                     continue
                 first = reported.get(seen_key)
                 duplicate = seen_key in seen_files
diff --git a/tests/test_audit_regressions.py b/tests/test_audit_regressions.py
index 2dda466b..2c500274 100644
--- a/tests/test_audit_regressions.py
+++ b/tests/test_audit_regressions.py
@@ -5774,5 +5774,25 @@ class TheApiSchemaHoldsTheFieldsItPromises(unittest.TestCase):
             jsonschema.validate(envelope, schema)
 
 
+class AFileTheLauncherNeverOpens(unittest.TestCase):
+    """RetroBat hands standalone BlastEm absolute paths to its own BIOS
+    names, so the defaults the emulator would read (cdbios.bin) were listed
+    as required and missing on RetroBat although nothing there opens them."""
+
+    def test_unread_on_drops_the_entry_for_that_platform_only(self):
+        from validation import deliverable, unread_on
+
+        entry = {"name": "cdbios.bin", "unread_on": ["retrobat"]}
+        self.assertTrue(unread_on(entry, "retrobat"))
+        self.assertFalse(unread_on(entry, "batocera"))
+        self.assertFalse(unread_on(entry, ""))
+        self.assertEqual(deliverable([entry], True, "retrobat"), [])
+        self.assertEqual(deliverable([entry], True, "batocera"), [entry])
+
+    def test_the_gap_report_reads_it(self):
+        source = (ROOT / "scripts" / "verify.py").read_text(encoding="utf-8")
+        self.assertIn('unread_on(f, config.get("_key", ""))', source)
+
+
 if __name__ == "__main__":
     unittest.main()