Can you use blue-tooth adapter on blu-ray to get wi-fi?

No, a Bluetooth adapter cannot be used to connect a Blu-ray player to Wi-Fi. Bluetooth and Wi-Fi are different technologies; Bluetooth is primarily for short-range data transfer between devices, while Wi-Fi is used for internet connectivity. To connect a Blu-ray player to Wi-Fi, it typically requires a built-in Wi-Fi feature or a compatible Wi-Fi adapter specifically designed for that purpose.