Hi, I am new to ENVI and IDL. I would like to do reprojection of 700 files of MODIS images. From MODIS Conversion Toolkit, I could do reprojection. But it takes only one file. Therefore, i would like to know how to add batch processing in the following program. I want to reproject to UTM, WGS 84, Zone 43. Could someone help me, please.................... Thanks in advance Shijo This is program from MCTK ------------------------------------------------- ;Level 1B example     pro test_batch_modis_conversion_level_1b     compile_opt idl2     modis_l1b_file = 'C:\MOD021KM.A2007079.0855.005.2007079160027.hdf' ;The specified output location MUST end in the appropriate path ;separator for your OS     output_location = 'C:\MCTK_Output\'     output_rootname = 'level_1b' ;Calibration method schema is: ;0 = Radiance \ Emissivity, 1 = Reflectance \ Emissivity     calib_method = 1 ;    Output method schema is: ;0 = Standard, 1 = Projected, 2 = Standard and Projected     out_method = 1     output_projection = envi_proj_create(/geographic) ;Use bow tie correction during the projection process     convert_modis_data, in_file=modis_l1b_file, out_path=output_location, $     out_root=output_rootname, /l1b, out_method=out_method, $     out_proj=output_projection, calib_method=calib_method, /bowtie, $     sd_pos=[1,3], /no_msg, background=0.0 end