DAEMON tools was originally a successor of Generic SafeDisc emulator and incorporated all of its features. The program claims to be able to defeat most copy protection schemes such as SafeDisc and SecuROM. It is currently compatible with Windows XP, Windows Vista, Windows 7 and Windows 8. DAEMON Tools has a special mode for proper operation of copies of discs with advanced protection (SafeDisc, SecuRom and LaserLock, CDCOPS, StarForce and Protect CD), which are used on some discs with games.
The default file format of DAEMON Tools is Media Data eXtended (MDX). MDX is a disc image file format similar to MDS/MDF images. It supports all of MDS/MDF format features except that all data is in one monolithic file only. The files of these types bear the filename extension of .mdx.
MDX file contains metadata of original media - specifically the main physical parameters of disc, such as layer breaks, sessions, tracks and other. It could be described as being an archive file containing all data from a CD/DVD. It also supports data compression. MDX file includes the magic number "MEDIA DESCRIPTOR" at the beginning of the file.
YASU (Yet Another SecuROM Utility) is a very small tool that works as a SCSI-drive protector. It was created by sYk0 and can be used to hide emulated drives from SecuROM 7 and SafeDisc 4. YASU is a companion program for Daemon Tools and currently being hosted, supported and maintained by the Daemon Tools team. On March 4 of 2009, sYk0 announced development of Omen which is to succeed development of YASU. As of January 2010, development of Omen has been abandoned.
^"FAQ: Is DAEMON Tools software free or not?". daemon-tools.cc. Retrieved 21 November 2011. "DAEMON Tools Lite is free for home and non-business use. In case you want to use DAEMON Tools in any organization, you need to buy a license."
^"Installation". DAEMON Tools Lite Help. DAEMON Tools. Retrieved 21 November 2011. "[Inside third screenshot] Support is provided only for Paid License users."
^"Daemon tool lite license problem". DAEMON Tools. Retrieved 24 June 2012. "Due to some changes in marketing strategy Korea is no longer among the countries for which a Free version of DAEMON Tools Lite available."