CDlinux is a CD based mini Linux distribution, which runs from a CDROM. It aims to be a handy administration/rescue tool for system administrators as well as general users. It's highly user configurable, supports a wide range of hardware (PCMCIA, SCSI, USB, etc.) and many networking protocols (FTP, SSH, NFS, SMB, DHCP, etc.). CDlinux also has good support for CJK, especially Simplified Chinese.