My Passport incompatible with Blu-Ray disk player

I recently purchased a My Passport External Drive of capacity 4TB to load it up with movies and enjoy on my home theatre system. However, my player displays a message that reads as follows: “The USB Device connected to this device is not supported”. I would like to receive assistance on the above issue with possible solutions. Thank you very much.

Well, you’re going to need to provide a lot more information.

What make and model is your blu-ray player? Does it support 4TB GPT formatted drives?