Added description also to Sonarr v4

docs/Sonarr/sonarr-collection-of-custom-formats.md

@@ -253,7 +253,23 @@ I also made 3 guides related to this one.
 ### DTS-HD HRA
 
 ??? question "DTS-HD HRA - [CLICK TO EXPAND]"
-    Description placeholder
+
+    [Technical Whitepaper](https://www.opusproductions.com/pdfs/DTS_HD_WhitePaper.pdf){:target="_blank" rel="noopener noreferrer"}
+
+    | Codec      | Page   | Paragraph |
+    | ---------- | ------ | --------- |
+    | DTS-HD MA  | Page 6 | 5.1.1     |
+    | DTS-HD HRA | Page 7 | 5.1.2     |
+
+    DTS-HD HRA is the lossy version of DTS-HD MA.
+
+    | Codec          | DTS-HRA          | DTS-MA            |
+    | -------------- | ---------------- | ----------------- |
+    | Lossy/lossless | Lossy            | Lossless          |
+    | Data rate      | 1.5 - 6.0 Mbit/s | VBR - 24.5 Mbit/s |
+    | Channels       | Up to 7.1 ch     | Up to 7.1 ch      |
+    | Sampling Freq. | 96 kHz           | 192 kHz           |
+    | Resolution     | -                | Up to 24-bit      |
 
 ??? example "JSON - [CLICK TO EXPAND]"