update radioddity page with new callsign files (inkludes zstd compressed archive)

content/equipment/radio-stuff/handhelds/radioddity-gd77/index.md

@@ -6,7 +6,7 @@ summary: >
 aliases:
   - /equipment/handhelds/radioddity-gd77/
 date: 2020-10-17
-lastmod: 2024-09-28T23:48:06+0000
+lastmod: 2024-12-18T07:58:09+0000
 #categories:
 #- amateur-radio
 showBreadcrumbs: true
@@ -93,9 +93,24 @@ callsigns in this list -- about 2000 new callsigns).
 {{< alert "circle-info" >}}
 If you don't have a proper file to start with use this one here. It contains
 these regions: `232, 262, 263, 264, 222, 228`.
-<a href="/files/dmrids_2024-07-07.zip" title="29651 entries">:open_file_folder: Download</a> (\~246KB)
+
+[:open_file_folder: ZIP](/files/dmrids_2024-12-18.zip "(30214 entries)") (~250KB)
+: ZIP compression is a well-known standard on many systems. Many systems can handle
+ZIP files out of the box. [Read more →](https://infozip.sourceforge.net/)
+
+[:open_file_folder: ZSTD](/files/dmrids_2024-12-18.zst "(30214 entries)") (~245KB)
+: Zstandard compression is a really fast compression algorith that still provides
+higher compression ratios. [Read more →](https://facebook.github.io/zstd/)
+
+If you want the older files, they are still available (if you have the link).
+
+[Read more about compression](https://gregoryszorc.com/blog/2017/03/07/better-compression-with-zstandard/)
+(and why I will include ZSTD compressed files on my website in the future)
 {{< /alert >}}
 
+_In addition to the compression-methods-article mentioned above, on this particular
+file I had to use `zstd -6` to outrun `zip -9` (zstd ranges up to `-22`)._
+
 Or: download your own set of DMR-IDs with the regions you want. You can also
 download only some federal states (like `2327,2328`) if you don't want all
 entries from `232`. [Read along here][dmrid] for some instructions about this.