Windows XP Media Center Edition 2005 (codenamed "Symphony") was released on October 12, 2004 as part of the Windows XP Media Center Edition operating system product line. It is the first edition of MCE available to non-Tier 1 system builders. Among other things, it includes support for Media Center Extenders, and CD/DVD-Video burning support. It also reuses content from Microsoft Plus! for Windows XP and Microsoft Plus! Digital Media Edition (previously released separately for standard Windows XP PCs in 2001 and 2003 respectively) and has them built-in.