Blu-ray players transmit information from high-definition Blu-ray discs and display the resultant signal on a television screen. Since the Blu-ray player is a high-definition (HD) device, it works best when connected to a high-definition television. If you do not have such a television, you can connect the Blu-Ray player to a computer monitor by making use of a special adapter cable.
Connect the HDMI end of your HDMI-to-VGA cable to the HDMI port on your Blu-ray player.
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Connect the VGA end of the HDMI-to-VGA cable to the VGA port on the back of your computer monitor.
Connect one end of your RCA (red and white) audio cables to the RCA ports on your Blu-ray player.
Connect the other end of your RCA audio cables to the RCA input ports on your audio device. This device can be a stereo, television or any other device with RCA ports that can transmit audio.
Turn your computer monitor, Blu-ray player and audio device on. The computer monitor will now transmit the visual signal from your Blu-ray player, and the audio device will transmit the player's audio signal.