Are Older Blu-Ray Discs Worse Quality?

Innovation is an inevitable reality for nearly all commercial technologies, regardless of whether it results in an improved product or corrupted goods marred by needless alterations. The same could be said for Blu-ray discs, which, despite being phased out by retailers, are still in production as of this writing. The notion that Blu-ray discs might have been altered might make some consumers question whether they'd be better off watching a $10 copy, produced in 2010, of the underappreciated Jack Nicholson sci-fi movie "Mars Attacks!", or splurging on its $30, 4K Blu-ray printed in commemoration of its 30th anniversary in 2026. The answer more so lies in how the picture's quality has improved over time, rather than the physical disc itself.

The Blu-ray disc's hardware hasn't changed that much since it was conceived decades ago. The physical disc has always been produced with a plastic material measuring 120 mm in diameter and 1.2 mm in thickness – the same dimensions as a standard DVD. Thus, if you're concerned that older Blu-Rays might not be up to par with current offerings, you'll need to dive deeper into how the format's software and visuals have changed over time.

While the Blu-ray disc's physical attributes haven't changed much since the format's 2006 launch, the clear, high-definition visuals that it promised over standard DVDs have certainly improved over time. Original Blu-Rays could store what was, for the time, a massive 25 GB of data on a single-layer disc, while dual-layer discs could handle up to 50 GB. As a result, they could display crisp 1080p video with lossless audio. By comparison, some consumers who've owned Blu-ray discs argue that modern discs include improvements like superior encoding, which they say has further enhanced the picture. "Encoding has long gotten better," one Redditor said. "Some distributors, like Sony, encode their Blu-Rays so well, I'd argue it rivals a 4K picture." Others stated some movies showcase such improvements better than others.

Therein lies the distinction between the standard Blu-ray and newer formats like the 4K Ultra HD, or UHD, Blu-ray. The UHD Blu-ray, which hit store shelves in 2016, has a resolution of 3840 by 2160 pixels, the HDR10 video standard, and an expansive color range, among other enhanced features. UHD Blu-ray discs also contain between 50 GB and 100 GB of storage space. The format actively benefits OLED and Mini-LED TV owners whose displays can handle high-caliber graphics.

While some media outlets and casual observers might argue that Blu-ray and physical media as a whole are dying, the notion that certain features have improved over time offers another reason for current owners to keep their collections. Whether one chooses to upgrade to newer discs is a whole different story altogether.