The marketing in USA and Europe had learned that home tape recording was a very attractive function for consumers, but that reel-to-reel would never exceed the very limited market of those who have technical skills. Consequently, from around the mid 1950s trials to get the tape in one or another case started (Tefi cassette for Tefifon in 1955, Dictet cassette for Dictaphone in 1957, Saba cassette for Sabamobile in 1958). Below we present the most successful attempts.