Hi all As we effectively have now 3 implementations of RAW LSB support, some feedback would be welcome! latest is: 0307 1:36 To FFmpeg devel ( 14K) [FFmpeg-devel] [PATCH 1/2] libavcodec/ffv1: Support storing decorrelated LSB raw without rangecoder The first was a hack basically, the 2nd went through the range coder and the 3rd is linked above Also teh 2nd and 3rd allow the quantization to be adjusted, with shift and offset, this machienery could be useful for improving compression Especially for higher bit depth (thats in theory, practice can always behave odd) thx -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Many things microsoft did are stupid, but not doing something just because microsoft did it is even more stupid. If everything ms did were stupid they would be bankrupt already.