How much disc space would 1 hour mpg video take?

The file size of a one-hour MPEG video can vary significantly based on factors like resolution, bitrate, and compression settings. Generally, a standard definition (SD) MPEG video might take around 700 MB to 1.5 GB, while high definition (HD) MPEG videos can range from 1.5 GB to 3 GB or more. For ultra-high definition (4K), the size can exceed 10 GB. Therefore, the exact disk space required will depend on these specifications.