The second file of a group of disk image files saved by DVD Shrink, a program that compresses DVD-Video data to fit on a single DVD-R disc; usually saved as part of a sequence of files; for example, the first file has a .I00 extension, the second file ends in I01, the third file has a .I02 extension, etc. Typically saved along with a corresponding .MDS file that defines the data structure of the disc.
The 101 file format is associated with Omnipage OCR Software Solutions.