may have expected to record with their mini dv 
(ROOT (S (VP (MD may) (VP (VB have) (VP (VBN expected) (S (VP (TO to) (VP (VB record) (PP (IN with) (NP (PRP$ their) (NN mini) (NN dv)))))))))))
(ROOT (S (VP (MD ) (VP (VB ) (VP (VBN ) (S (VP (TO ) (VP (VB ) (PP (IN ) (NP (PRP$ ) (NN ) (NN )))))))))))