The photodissociation of deuterated dimethyl sulfide (CD3SCD3) has been studied in the first absorption band at a laser wavelength of 229 nm. The resonance-enhanced multiphoton ionization time-of-flight technique has been employed to determine the recoil energy distribution and the anisotropy parameter beta and to study the rovibrational state population of the nascent CD3. The observed value beta = -0.9 +/- 0.1 (perpendicular dipole transition) corroborates the C-2v B-1(1) (or C-s (1)A ") symmetry of the excited state accessed at 229 nm, as assigned previously by different groups. For dissociation yielding vibrationless CD3, the center-of-mass translational energy is, on average, 80% of the maximum energy available. CD3(v=0) fragments are produced with a rotational distribution showing a maximum at N " = 9-11. Evidence for activity of the vl symmetric stretching mode of CD3 is also observed. These results are compared with those obtained for deuterated methyl iodide (ICD3).