rock@xxxxxxxx (2003-08-08 at 1801.54 -0700): > 7 able to support many color depth and spaces > PNG certainly supports 1,2,6,7,9,10, and 11. Let us examine the other IIRC (did I read the spec wrongly maybe?) the upper limit is RGBA with 16 bit per channel, no arbitrary color spaces or data formats. You would have to use gray PNGs to assemble other color spaces... and never want 32 int or floats, or use a similar trick than with colour spaces, split data. I think PNG does not fit 7 without tricks. GSR