Hi I`m using MODIS conversion toolkit code to georeference Cloud Mask L2-1km(mod35). As I have 10 years products I`ve added for loop to the current code, but whould you help me to run. I have problem with swath,sd & .. . _names ?!!! my code is : pro batch_modE_mctk_for_level2 compile_opt idl2 Cmask_path='C:\Users\maryam\TEST\' Cmask_files=file_search(Cmask_path+'*.hdf',Count=img_count) ;modis_swath_file = 'I:\Maryam\' ;The specified output location MUST end in the appropriate path ;separator for your OS out_path = 'C:\Users\maryam\TEST\out\' swath_name = 'mod35' sd_names = ['CloudMask'] ;Output method schema is: ;0 = Standard, 1 = Projected, 2 = Standard and Projected out_method = 1 out_proj = envi_proj_create(/geographic) ;The interp_method keyword uses the same numbering scheme as ;ENVI_REGISTER_DOIT's METHOD keyword ;Choosing Triangulation with Nearest Neighbor. This keyword is ignored ;if /bowtie is set interp_method = 6 ;Setting num_x_pts to 50 and num_y_pts to 50 results in 2500 GCPs. ;That should be more than enough.... ;These keywords are ignored if /bowtie is set for i=0,img_count-1 do begin in_file=Cmask_files[i] out_root = 'G'+file_basename(Cmask_files[i]) ;swt_name = 'mod35' ;sd_names = ['Cloud_Mask'] convert_modis_data, in_file=Cmask_files[i], $ out_path=out_PATH, out_root=out_root, $ /higher_product, swt_name=swt_name,sd_names=sd_names,$ out_method=out_method, out_proj=out_proj, num_x_pts=50, num_y_pts=50,$ interp_method=interp_method, /no_msg ; print,out_root endfor end thx Maryam