Blu-ray and DVD are both optical disc storage media formats. They have many similarities, but there are some key differences.

The main difference between Blu-ray and DVD is the quality of the video. Blu-ray discs can store much more data than DVDs, so they can produce a higher quality image. This is because Blu-ray discs use a blue-violet laser, which can store more data than the red laser used in DVDs.

Blu-ray discs can also store more audio data than DVDs, so they can produce a higher quality audio signal. This is because the blue-violet laser can read smaller pits …