You Don't Know by Serious Intention on the Important Records label:
UK 12" from 1985 in Important Records sleeve, which has been taped -
A: You Don't Know (Special Remix) 8:16
B1: Anthony Know's (Acapella Mix) 1:39
B2: You Don't Know (Oh-Oh-Oh) (Live/Extramental Mix) 8:58
B3: They Don't Know (Oh-Oh-Oh) (Acapella Reprise Mix) 1:21