Disney+

Prerequisites

Download and extracted TPD-Keys

Working CDM

EME Logger Script (installed on Tampermonkey add-on) will give you init data. That's your PSSH. This can be found on Developer Tools (ctrl + shift + c) > Console, in the filter bar search for MediaKeySession::generateRequest you will find Init Data.

Instructions

Obtaining Disney+ decryption keys.

Login to your Disney+ account. (Ad and ad-free both supported)
Go to the title you want to decrypt.
Start playing the content you want to decrypt.
Open web devoloper tools (ctrl+shift+c) and click on the console tab.
Refresh the page and play the content again.
In the filter bar search for MediaKeySession::generateRequest and you should see a field called Init Data appear, in that field is your pssh

Save this somewhere safe.

find the License URL in Disney+ this can be found using devoloper tools (ctrl+shift+c) and clicking on the network tab, then searching for method:POST widevine in the filter bar.

7a) Right click on the oldest (should be the only, but if not, top most) result, go down to Copy Value and then slect Copy as cURL (POSIX).

This was done on firefox.

7b) Go to curlconverter.com and paste in what you copied.

7c) Copy to clipboard the output (of headers only), then open DRMHeaders.py in your TPD-keys directory and paste the newly formatted headers, save and exit.

7d) Navigate to your TPD-keys directory via command prompt / terminal.

Run with python tpd-keys.py.

8b) select option 3 for Generic with headers from DRMHeaders.py

Insert the pssh.
Right click the oldest (should me the only, but if not, top most) license URL again and this time select Copy URL and paste this into your command prompt waiting for License URL.
Select proxy if wanted.
You should have an output of all the available keys for content.