Musician contract

hello! my name is n'apho mambu i am musician singer and song written, i just come to realise an album and a dvd clips, i play congolese music, the rythm is roumba,soukous and ndombolo,i live in london,i want to sign contract with this company to protect my right of task, then i want know more about contract because this cd and dvd i made them my self no sponsor that's wy i want know about everything, thank you very much.