Rob Smith is an English DJ, musician and remixer from Bristol, England. Previously on the now defunct Grand Central Records independent record label, playing breakbeat hip-hop, dub and reggae-influenced music, more recently producing dubstep tracks as RSD on a number of labels. Smith was formerly a drum & bass/jungle DJ, most notably alongside Ray Mighty and Peter D Rose in Smith & Mighty on the !K7 Records label. Smith and Rose also produced music under the moniker of More Rockers.