My preference with bump maps: name it _bum.jpg, with directions to convert if necessary, and do not reference it in the CR2. Then have 2 MAT poses, one for PP/P5 that calls for a jpg, and one for P4 that calls for a bum. I'm wierd. I'm on P4, so I convert to bum, then resave the bum as a jpg (so it's now green and red, but in jpg format) and make the MAT files reference the jpg. It's way smaller and works the same. (Thanks, Dodger, for this trick!) The only problem is that it can no longer be applied through the material dialog, or Poser tries to BUM it again. It has to be put on with a MAT file.