jigdo

Jigsaw Download (for short jigdo) is a scheme developed primarily to make it easy to distribute huge filesystem images (e.g. CD (ISO9660) or DVD (UDF) images) over the internet, but it could also be used for other data which is awkward to handle due to its size, like audio/video files or large software packages. jigdo tries to ensure that the large file is downloaded in small parts which can be stored on different servers. People who want to download the image do so by telling the jigdo download tool to process one ".jigdo" file; using it, jigdo downloads the parts and reassembles the image. jigdo-file is used to prepare the files for download.

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