diff --git a/docs/spec.md b/docs/spec.md
index d4da533..099c8df 100644
--- a/docs/spec.md
+++ b/docs/spec.md
@@ -733,11 +733,17 @@ flowchart TD
 | Single dictionary (small) | All | `dictionary` | Small | direct | Round-trip successful |
 | Single arrow table (small) | Julia/JS/Python | `arrowtable` | Small | direct | Arrow IPC round-trip |
 | Single JSON table (small) | All | `jsontable` | Small | direct | Dictionary array round-trip |
+| Single image (small) | All | `image` | Small | direct | Binary round-trip |
+| Single audio (small) | All | `audio` | Small | direct | Binary round-trip |
+| Single video (small) | All | `video` | Small | direct | Binary round-trip |
+| Single binary (small) | All | `binary` | Small | direct | Binary round-trip |
 | Single text (large) | All | `text` | Large | link | File server upload/download |
 | Single JSON table (large) | All | `jsontable` | Large | link | File server upload/download |
-| Mixed payloads (small) | All | `text` + `dictionary` + `image` | All small | direct | All payloads preserved |
-| Mixed payloads (large) | All | `text` + `dictionary` + `image` | All large | link | All payloads via file server |
-| Mixed payloads (combo) | All | `text` (small) + `image` (large) | Mixed | direct/link | Correct transport per payload |
+| Single image (large) | All | `image` | Large | link | File server upload/download |
+| **Ultimate Test** | Julia/JS/Python | `text` (small) + `dictionary` (small) + `arrowtable` (small) + `jsontable` (small) + `image` (small) + `audio` (small) + `video` (small) + `binary` (small) + `text` (large) + `dictionary` (large) + `arrowtable` (large) + `jsontable` (large) + `image` (large) | Mixed | direct/link | All payloads preserved with correct transport |
+| **Ultimate Test** | Python | `text` (small) + `dictionary` (small) + `jsontable` (small) + `image` (small) + `audio` (small) + `video` (small) + `binary` (small) + `text` (large) + `dictionary` (large) + `jsontable` (large) + `image` (large) | Mixed | direct/link | All payloads preserved with correct transport |
+| **Ultimate Test** | JavaScript | `text` (small) + `dictionary` (small) + `jsontable` (small) + `image` (small) + `audio` (small) + `video` (small) + `binary` (small) + `text` (large) + `dictionary` (large) + `jsontable` (large) + `image` (large) | Mixed | direct/link | All payloads preserved with correct transport |
+| **Ultimate Test** | MicroPython | `text` (small) + `dictionary` (small) + `text` (large) + `dictionary` (large) | Mixed | direct | Limited to text/dictionary with direct transport only |
 | Cross-platform JSON table | All | `jsontable` | Small | direct | Dictionary array round-trip |
 | MicroPython ↔ Desktop | MicroPython ↔ Desktop | `text`/`dictionary` | Small | direct | Limited payload types |
 | Desktop ↔ Desktop (all combos) | Julia↔JS↔Python | All types | Small/Large | direct/link | Full compatibility |