SVI-318/328 emulator
   An open source SVI-318/328 emulator for DOS.
   http://www.acc.umu.se/~yarin/sviemu/

Spectravideo software tools
   Support site for the SVI-318/328 emulator by Jimmy Mårdell. Features a cas to wave and wave to cas converter, a frontend, and a manager for the cassette files.
   http://m1.174.telia.com/~u17402401/svi/