Linux Multimedia Player is a tiny Linux-based live distribution that converts your computer into a multimedia player. It supports most of the known formats (MPEG 1 and 2, DivX, WMV, qt-mov, Real, MP3, WAV, WMA, Ogg, VCD, and DVD), acts as an MP3 streaming server, auto-detects the various partitions on IDE, SATA, and SCSI hard disks, and auto-detects sound, video, and network cards. It supports all cards as of kernel 2.6.21. Network support can be configured in the GUI. Options are menu-driven and require no knowledge of Linux.
PlumpOS is a bootable openMosix node on a CD. Pop the CD into a 486+ computer and you have an instant openMosix node. It supports loading 3rd-party packages and adding custom kernels. It takes up very few resources. It was originally a clone of clump/os, but has evolved into something that doesn't resemble it much anymore.
rpm livelinuxcd is a set of ISO images and a toolkit. The first CD image is a basic live CD with X/KDE, GNOME, twm, VPN/DSL, kickstart, and other tools based on RPM packages. The second CD image includes a server with ssh, Apache, PHP, MySQL, Samba, Squid, and more, but without X11. The toolkit consists of shell scripts to create new CDs from RPM package lists or comps files.
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.
Ubuntu Privacy Remix is a modified live CD based on Ubuntu Linux. UPR is not intended for permanent installation on a hard disk. The goal of Ubuntu Privacy Remix is to provide an isolated working environment where private data can be dealt with safely. The system installed on the computer running UPR remains untouched. It does this by removing support for network devices as well as local hard disks. Ubuntu Privacy Remix includes TrueCrypt and GnuPG for encryption and introduces "extended TrueCrypt volumes".
MBCD (MultiBootCD) is a shell script to make a customized CD-ROM that can boot any kind and any number of image files. Currently, 4 types of images are supported: floppy images (1.2M, 1.44M, or 2.88M), Knoppix-like images, kernel-binary images (e.g. memtest86), and the Windows XP Recovery Console.
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.