Convert CBR to RB

The CBR (Comic Book RAR Archive) file extension is used for storing and displaying digital comic books. It compresses a series of images, typically in JPEG, PNG, or GIF formats, into a single RAR archive, facilitating easy sequential viewing. Originating in the 1990s, the CBR format was popularized by David Ayton's CDisplay software, which optimized the reading experience by automatically ordering pages. This format has since become a standard for digital comics, supported by various comic book reader applications.

The RB file extension stands for Rocket eBook File, used by the Rocket eBook device from NuvoMedia, introduced in 1998. It is a container format for eBooks, typically holding HTML content and metadata. Although it supports DRM, modern eBooks no longer use this feature. The format includes a unique file structure with specific byte sequences for versioning and content organization.