Cassette autochanger systems

A cassette autochanger for automatically supplying and selectively reproducing a plurality of cassettes having programs recorded on recording media thereof, the cassette autochanger comprising:

• a plurality of reproducing/recording means;
• a cassette housing means having a plurality of cassette storage locations;
• cassette transporting means for selectively transporting said cassettes between said cassette storage locations and said reproducing/recording means;
• and
• control means for controlling the operation of said reproducing/recording means and said cassette transporting means, said control means comprising:
• first detecting means for determining whether any one of said programs is recorded only in one of said cassettes but not in a plurality of said cassettes;
• second detecting means for determining whether any two of said reproducing/recording means are available for use;
• and
• dubbing control means for controlling said two of said reproducing/recording means to automatically dub said one of said programs onto another one of said cassettes when said one of said programs recorded in only one of said cassettes is determined by said first detecting means, thereby making available both of said cassettes for reproduction of said one of said programs.