mobi 是一种电子书格式, 支持多个电子书阅读设备和小工具。它还支持移动电话和 pda。虽然它是 Mobipocket 阅读器的文件扩展名, 但大多数其他电子书阅读器也支持此文件格式。它还包含 drm, 以保护电子书的数字权利。这一格式将从2011年起正式停止。
MOBI is an eBook format that supports several eBook reading devices and gadgets. It also supports in mobile phones and PDAs. Although it is a file extension of Mobipocket Reader, most other eBook readers also support this file format. It also contains DRM to protect the digital right of the eBook. This format is officially discontinuing from the year 2011.