>>  Dell Latitude:
      C - CP, CPi, CPiA, CPiD, CPiR, CPi M,
      CPt, CPtc, CPtS, CPtV,CPxH, CPxJ,
      C500,C510, C540, CS, CSx, CSr, CSxH,
      C600, C610, C620, C640,C800, C810,
      C820, c400, C840, C400 Series, L, LS,
       LST, LSH, LS400, L400, LS500 (all Dell Latitude `C` series models)

Write speed:
DVD+/-R: 8x
DVD+/-RW: 8x
DVD+/-R DL: 6x
DVD-RAM: 5x
CD-R: 24x
CD-RW: 16x

Read speed:
DVD-ROM: 8x
CD-ROM: 24x

Remarks: Here just set CD-ROM as en example, for DVD-RW burner 
                 will with it's corresponding mark and bezel.