We consider the inverse spectral problem for a class of reflectionless
bounded Jacobi operators with empty singularly continuous spectra. Ou
r spectral hypotheses admit countably many accumulation points in the
set of eigenvalues as well as in the set of boundary points of interva
ls of absolutely continuous spectrum. The corresponding isospectral se
t of Jacobi operators is explicitly determined in terms of Dirichlet-t
ype data.