A TIB file, an image created by Acronis True Image, is very similar to other disk imaging files such as Ghost, DMG, PQI, MRIMG, and O&O.
TI can create these images for Windows and Linux and can be done offline by booting from Live CDs, flashdrives or PXE.
You can then use these disk images to replicate the image to another disk or back onto a newly wiped computer. Also includes partition resizing and encryption.