PLD RescueCD is a bootable disk that contains a live Linux distribution based on PLD Linux x86 and x86-64. It uses transparent xz compression to fit about 180 MB of software onto a single mini CD in a usable form. It can be used to rescue ailing machines, perform intrusion post-mortems, or act as a temporary secure Linux-based workstation. It is possible to boot via PXE and from USB devices.
GNUSTEP Live CD contains a lot of software for GNUstep, a free implementation of the OPENSTEP framework (which is also directly used in Mac OS X as Cocoa). It includes excellent applications for RAD (GORM and ProjectCenter). The CD is available for i486, AMD64, Apple Mac PowerPC, and Sun UltraSPARC computers.
Rocks is a complete "cluster on a CD" solution for x86 and IA64 Red Hat Linux COTS clusters. Building a Rocks cluster does not require any experience in clustering, yet a cluster architect will find a flexible and programmatic way to redesign the entire software stack just below the surface (appropriately hidden from the majority of users). Although Rocks includes the tools expected from any clustering software stack (PBS, Maui, GM support, Ganglia, etc), it is unique in its simplicity of installation.
Cool Linux CD is a bootable CD that contains a a live Linux distribution based on RedHat 7.3. It also includes the XFS filesystem, devfs, IceWM, QVWM, ROX-filer, OpenOffice.org, Opera, Mozilla, Sylpheed, Pan, Licq, X-chat, GFTP, ppp-redialer, xmms, xine, mplayer, gqview, LinNeighborhood, IPTraffic, VMWare, and more.
MEPIS Linux is a desktop Linux system that is also easy to configure as a dedicated server. It is designed for both personal and business purposes. It includes cutting-edge features such as a live/installation/recovery CD, automatic hardware configuration, NTFS partition resizing, ACPI power management, WiFi support, anti-aliased TrueType fonts, a personal firewall, KDE 3.1.2, and much more.
KernelKit is a Knoppix derivative dedicated to developers of Linux device drivers and Free Software embedded systems. In particular, it includes uClibc cross-compiling toolchains for several embedded architectures (currently arm, armeb, i386, mips, mipsel, PPC, m68k and sh4) and emulators (currently qemu and SkyEye). It can be used for demonstration or training purposes, or by developers who cannot install GNU/Linux on their workstations.