GSplit
GSplit is a file splitter that lets you split your large files (like Self-Extracting, Zip archives, multimedia, music, movie, backup, picture, text, archives etc.) into a set of smaller files called pieces.
These pieces are easier to copy to floppies, to distribute over the Internet, to post on networks or through E-mail, to share with friends or colleagues, to upload to online file hosting services, to archive to CD, DVD, USB flash keys, Zip and other data storage devices.