When you play a DVD on a 4K Blu-ray player that supports upscaling, the player enhances the DVD's standard definition (SD) resolution to a higher resolution, closer to 4K. This process is called upscaling, and it aims to improve the visual quality of the DVD content on a 4K display.

How Upscaling Works:

• Resolution Enhancement: The player takes the DVD's lower resolution (typically 480p or 720p) and mathematically calculates how to fill in the missing pixels to create a higher resolution image that better fits the 4K screen.

• Upscaling to 4K: The player upscales the DVD content to a resolution closer to 4K, effectively making it appear sharper and more detailed on your 4K TV.

• SDR (Standard Dynamic Range): DVD content is typically in SDR, meaning it has a standard range of brightness and color, as opposed to HDR (High Dynamic Range) content, which has a wider range.

• Upscaling vs. Native 4K: Upscaling is different from native 4K content, which is already in 4K resolution. Upscaling enhances the DVD content, but it doesn't fundamentally change the original source material.

Benefits of Upscaling:

• Improved Resolution: Upscaling makes DVD content look sharper and more detailed on a 4K display than it would without upscaling.

• Better Viewing Experience: Upscaling can enhance the overall viewing experience for older DVDs on a modern 4K TV.

• Enjoy DVD Content on 4K TV: Upscaling allows you to watch your DVD collection on a 4K TV, even though the DVDs themselves are not in 4K resolution.