NEW YORK (Reuters) - Amazon on Tuesday launched Brown Sugar, the new subscription-video-on-demand service featuring what it calls the biggest collection of the"baddest" African-American movies for its prime members.

They will receive a seven-day free trial to access the service at BrownSugar.com and on other devices, paying US$3.99 (S$5.40) a month thereafter, Amazon said.

The Brown Sugar website tagline describes itself as "a black explosion of hot chicks, cool cats and cult classics". Its portfolio of movies include Blacula, Black Caesar, Cotton Comes To Harlem and Foxy Brown.

The move comes at a time when video-streaming services like Netflix and Amazon Prime are competing to gain traction among young viewers shying away from traditional television services.