You'll need to use a disk image. Try using Disk Utility to make a 1440 KB disk image with no partition map and a FAT filesystem. Mount the disk image and copy your stuff onto it. Then use dd from the ...

"Using dd you can create backups of an entire harddisk or just a parts of it. This is also usefull to quickly copy installations to similar machines. It will only work on disks that are exactly the ...