[Ha! Ha! I’m using TEH INTARWEB!!!1 – Make large files span multiple optical discs](http://www.aaronadams.net/index.php/2005/10/18/make_large_files_span_multiple_optical_d)
great set of unix commands to automatically dmg files and split them – useful for info re screen command too
(tags: [unix](http://del.icio.us/skinnyjimmy/unix) [backup](http://del.icio.us/skinnyjimmy/backup) [tips](http://del.icio.us/skinnyjimmy/tips) [screen](http://del.icio.us/skinnyjimmy/screen) [hdiutil](http://del.icio.us/skinnyjimmy/hdiutil))