The Literary Resource File format, often abbreviated as LRF, is a file type primarily associated with older Sony e-readers. It served as a proprietary format designed to store and display digital books, containing text, images, and formatting information. An example includes files with the extension “.lrf” that were commonly distributed through Sony’s Connect eBook store prior to its closure.
This format offered a way to package digital content efficiently for devices with limited processing power and storage capacity. Its significance lies in its role in the early days of e-reading technology, providing a structured means for distributing and consuming digital literature. However, its proprietary nature ultimately limited its widespread adoption, and its use has diminished significantly as more open and versatile formats have emerged as industry standards.