 Rivl is implemented with 4000 lines of C code and 500 lines of Tcl code. It has been ported to the Sun OS, HPUX, and Linux operating systems. Rivl has been used to build a simple video editor. Rivl and its editor can be found at <a href="http://www.cs.cornell.edu/Info/Projects/zeno/rivl/rivl.html">http://www.cs.cornell.edu/Info/Projects/zeno/rivl/rivl.html.</a><p>
