Megabytes (Mb) meaning

A unit for measuring the size of electronic data used in contracts, e‑disclosure/eDiscovery, electronic bundles and court or regulatory filings. In legal documents it indicates file size, storage capacity or data transfer limits. The conventional abbreviation for megabytes is MB. Mb denotes megabits (used for network speeds). To avoid disputes, state units precisely in drafting. Usage is descriptive and not generally defined in UK or Irish legislation or case law. Across England & Wales, Scotland, Northern Ireland and Ireland the term is understood consistently, but two sizing conventions exist: - Binary (common in IT and litigation support): 1 MB = 1,024 kilobytes; 1 kilobyte = 1,024 bytes. The precise binary unit is a mebibyte (MiB = 1,048,576 bytes). - Decimal (common in consumer marketing and some service descriptions): 1 MB = 1,000,000 bytes. Practical tip: when setting caps, service levels or disclosure volumes, specify the base and unit, for example “250 MB (decimal)” or “250 MiB (binary)”, and if referring to bandwidth use “Mb/s” (megabits per second) rather than MB.