UltraHD Blu – ray discs look like the 5-inch (12cm) 50GB dual-layer physical discs used in the Blu – ray disc format, but the 4K Blu – ray Disc format has a dual-layer Datastorage, high-definition video, QHD/WQHD, possibility of Ultra HD: Optical discs; General. Mini Blu-ray Disc, 4K Blu-ray (Ultra HD Blu-ray) M-DISC; Universal Media Disc (UMD) Enhanced Versatile Disc (EVD) Forward Versatile Disc (FVD) Holographic Versatile Disc (HVD) HVD is not the only technology in high-capacity, holographic Asingle-layer disc can hold 25GB. A dual-layer disc can hold 50GB. To ensure that the Blu-ray Disc format is easily extendable (future-proof) it also includes support for multi-layer discs, which should allow the storage capacity to be increased to 100GB-200GB (25GB per layer) in the future simply by adding more layers to the discs. 4KUHD discs have greater storage capacity than Blu-ray does. 4K UHD discs are available in dual and triple layers: The more layers there are, the more storage capacity the disc will have. The storage capacity of 4K Yes as referenced above, Ultra HD Blu-ray players will play Blu-ray discs, DVDs, SACDs, DVD-Audio, and Redbook CDs. Both standard 1080p Blu-ray discs and DVDs will be up-converted to UHD Have2k+ discs 4k& Blu-ray in the 400 capacity cases stored in waterproof storage containers all ripped to my plex nas Reply reply     TOPICS. Gaming. Valheim; Genshin Impact; The Subreddit for all things 4K Blu-ray, reviews, tech and hardware. Zavvi Affiliate Commissions Earned. Join our Discord Server 4Kdiscs have a higher storage capacity for data. The actual technology itself is the same as DVD and Blu-Ray: little “bumps” on the disc make up a binary code that is read by the player to display the picture. 4K Blu-Ray discs simply have smaller “bumps” which means you can fit a lot more of them on the disc, meaning way more data Bluray Blu-ray Disc is the next generation in optical storage, offering 25GB and 50GB of storage capacity on a disc. BDXL™ The BDXL format supports high-capacity Blu-ray discs (up to 128GB write-once discs) for users that need to store a large amount of data. Serial ATA Techonology Serial ATA is a 1.5Gbps evolutionary replacement for the cw1WU.