Unified Emulator Format

File Format
Name	Unified Emulator Format
Ontology	Electronic File Formats Disk Image Formats Unified Emulator Format
Extension(s)	.uef

The Unified Emulator Format (UEF) is a format used to store raw tape, disk, and ROM data from Acorn computers, including Kansas City Standard data cassettes, in a computer file suitable for storage and transfer on modern systems and networks. Since some other computer systems (e.g., the SOL-20) also use the Kansas City standard for cassettes, this format will also serve to archive cassette data for them, similarly to how a Tap file encodes Commodore cassettes.

References

• UEF specs
• Wikipedia article
• Acorn cassette format - covers physical and signal layers in addition to describing the block layer relevant to UEF images

Software

• UEFtrans: Python script to handle UEF data