iso The archive file format known as ISO is a disk image format. It is the popular archiving technology used to archive the contents of every sector of an optical disc or file system. Compatible disk imaging software is often required to author ISO images from an optical disk or file directory. Reading ISO images can then be done with the same disk imaging software either by directly opening the image file or by mounting the image file onto a virtual disk drive typically created by the imaging software. Archived ISO files can be easily distributed on today's high speed internetworks without limitation or as self-contained files via portable hard drives.
tbz2 .bz2 is the filename extension associated with the bzip2 data compression format. It is an open source data compression and decompression tool developed by Julian Seward in 1996. The compression and decompression format is cross platform compatible and comes bundled with versions of Linux and UNIX. The latest of Bzip2 exists as an open source library for download and customization. Earlier versions have executables that can be run directly on Microsoft Windows.