Das Phantom der Oper - Adaptation by Titania Medien

Except Big Finish Radio Dramatisation there is a very interesting adaptation of Gaston Leroux's novel in German.
Willkommen - Das Phantom der Oper by Titania Medien.



The information about the cast is on the cover.
Although it's only 78 minutes, all in all the plot is preserved: the crashing of the chandelier, the masquerade, "torture chamber" and etc. Alas, no graveyard.
Here are some other differences:

Spoiler:

Persian was Philippe de Chagny's friend, Philippe died in the "torture chamber" while Raoul and Persian survived. Christine went to the Phantom's house only once - after the chandelier crashed, she saw Erik's face only that time. Madame Giry told all the story to Gaston Leroux himself.

The information and a piece of this audiobook/adaptation are here