Hi-- OK, this one has been driving me mad for about 2 weeks. I'm using Envi 4.5, and successfully converted several subsetted ASTER files to reflectance about a month ago. For some reason, it no longer works--I have tried on 3 different machines. The error message I get is: ACC Error: Convert7 IDL Error End of Input Reached on File Unit: 0 ACC_Convert7 ACC_Hyper2 ACC_ACC ENVI_ACC_EVENT ENVI_FLAASH_PROCESSMANAGER IDLRTMAIN| $MAIN$ As far as I know, I haven't changed anything--I've tried using the previously converted BILs, and I've tried reconverting the HDFs to BILs. I found one other reference to this error which suggested that the azimuth/nadir angles might be off--but I haven't done anything different here--those settings are exactly the ones I used before. 100% stuck on this one--any help would be really appreciated! Thx. Steve