Splits (chop) big file in smaller segments to be able to store them in floppy disks or CD (these are just examples). The main feature if compared to other programs like this, is the ability to support very large files( up to 9,223,372,036,854,775,807 bytes = 8589934591 GB , theoric) and to being configured to increase performances if used with fast disks ( adjusting the read and write buffer up to 32 times the commonly used value)