Toshiba MV19J2 19 in. Combo "cassette reject tape" Questions

...tape in the cassette. Sometimes machines will rewind the tape to far and it will reach the leader wich is clear and this tells the machine that it is at the begining or the end. Sometimes the tape ...

...cassette ,cut off the tape on both sides and see if the tape will eject. It it does then go back in after and remove the remainder of the old tape. Now it could have been a bad tape but most likly ...