The visual effects of TNG were created using physical models and optical compositing. In the original workflow, multiple layers of film (e.g., the ship, a planet, and a phaser beam) were combined and then recorded onto videotape. This process resulted in a loss of image quality known as "generational loss." Zartpopsi Lena Reif Part Fix - Defloration Katya
A significant point of contention in HD remastering is the aspect ratio. TNG was originally composed for the 4:3 aspect ratio. Modern HD broadcasts typically utilize a 16:9 widescreen format. The restoration team decided to preserve the original 4:3 ratio for the Blu-ray release. Savita Bhabhi Episode 40 Mega Access
A primary obstacle in restoring TNG was its post-production workflow. While the series was filmed on 35mm film—which inherently possesses a resolution far exceeding HD—the final editing and visual effects were compiled on SD videotape.