How many Blu-ray disk can be stored in 1 terabyte?

A standard single-layer Blu-ray disc holds about 25 GB of data, while a dual-layer disc can hold around 50 GB. Therefore, in 1 terabyte (1,000 GB), you could store approximately 40 single-layer Blu-ray discs or about 20 dual-layer discs. This calculation can vary slightly based on the actual usable capacity of the storage medium.