Creator by KDDI SMIRK presentation authoring tool for the production of accessible slide shows outputting to SMIL 2.0, SMIL 1.0, XHTML + SMIL, HTML 4.01. SMOX Pad and SMOX Editor, for advanced SMIL and HTML+Time development. SMG for a PDA, a BREW, a Phone and a PC by Smilmedia TAG Editor 2.0 - G2 release by Digital Renaissance ??? Tagfree 2000 SMIL Editor Toolkit for MPEG-4 from IBM, creates MPEG-4 binary from content created in XMT-O (based on the SMIL 2.0 syntax and semantics). TransTool - open source transcription tool VeonStudio by Veon Validator: SMIL 1.0, SMIL 2.0, SMIL 2.0 Basic and XHTML+SMIL by CWI. 3TMAN allows to easily author the complex multimedia projects and then can export the multimedia projects to the Html+time and/or SMIL formats Demos SMIL 2.0 Feature-by-feature demos by RealNetworks Torino and New York demos by Telecom Italia Lab SMIL1.0, SMIL 2.0 demos available from Oratrix. Synchronized Multimedia Summer School at INRIA The Webnews demo, by CWI. (needs an HTML renderer) Demos available from RealNetworks SMIL 1.0 tutorial written in SMIL SMIL1.0 demo of the Canyonlands XHTML+SMIL demos, by Microsoft (works In > IE5.5 only) XHTML+SMIL demos, by Patrick Schmitz (works In > IE5.5 only) Demos of SMIL Animation used in combination with SVG at Burning Pixel and KevLinDev Karaoke demo; SMIL version, you can directly test a Html+time version for IE6. An enhanced Karaoke demo. SMIL documents A SMIL document is similar in structure to an HTML document in that they are typically divided between an optional <head> section and a required <body> section. The <head> section contains layout and metadata information. The <body> section contains the timing information, and is generally composed of combinations of three main tags—sequential ("<seq>", simple playlists), parallel ("<par>", multi-zone/multi-layer playback) and exclusive ("<excl>", event-triggered interrupts). SMIL refers to media objects by URLs, allowing them to be shared between presentations and stored on different servers for load balancing. The language can also associate different media objects with different bandwidth requirements. For playback scheduling, SMIL supports ISO-8601 wallclock() date/time specification to define begin/end events for playlists. SMIL files take either a .smi or .smil file extension. However, SAMI files and Macintosh self mounting images also use .smi, which creates some ambiguity at first glance. As a result, SMIL files commonly use the .smil file extension to avoid confusion. Combination with other XML-based standards SMIL was created during a time when structured