Welcome to the forum! Please take a look over the guide that @Mr.Flibble shared, if you have any issues getting the codec installed, please let us know at exactly which step you run into issue and provide any additional details you can. Thank you!
Diagnostics show that this ROCK might have been active since you posted. Are we correct to assume that you’ve resolved this codec issue behind the scenes? Please reach out if we can assist further. This thread will close automatically in a few days without any further responses.