As part of the simultaneous analysis of line positions and intensities of the first two polyads of monodeuterated methane, the results achieved for the region 3-5 μm are reported. It involves the three highest fundamentals, (ν 1 , ν 2 , ν 4 ), overlapped by overtone (2ν 3 , 2ν 5 , 2ν 6 ) and combination (ν 3 +ν 6 , ν 3 +ν 5 , ν 5 +ν 6 ) bands. The theoretical model was based on the global tensorial model implemented in the MIRS package. Some 10 000 line positions and 2400 line intensities have been modeled to +/-0.000 88 cm - 1 and +/-3.6% respectively, using measurements obtained at 0.0056 and 0.011 cm - 1 resolution with the Fourier transform spectrometer at National Solar Observatory located at Kitt Peak. The strongest band in this polyad is ν 4 (E) at 3016.7 cm - 1 with a strength of 6.3x10 - 1 8 cm - 1 /(molecule cm - 2 ) at 296 K; the weakest band is 2ν 3 (E) at 2597.7 cm - 1 with a strength of 1.9x10 - 2 0 cm - 1 /(molecule cm - 2 ) at 296 K. The total calculated absorption arising from the CH 3 D nonad is 8.95x10 - 1 8 cm - 1 /(molecule cm - 2 ) at 296 K.