 The tie @-@ in novelization of " Trials and Tribble @-@ ations " was written by Diane Carey and published by Pocket Books . In 1998 , a " Talking Tribble Gift Set " was released which contained both " The Trouble with Tribbles " and " Trials and Tribble @-@ ations " on VHS . " Trials and Tribble @-@ ations " was first released in the normal run of VHS issues as part of a two episode cassette alongside " The <unk> " in the United Kingdom on October 1 , 1999 . A single episode release followed in the United States and Canada on July 10 , 2001 . It was released on DVD as part of the season five box set on October 7 , 2003 . 
