Two updates, which also affect SFGrpConv since it uses GRPAPI:

- Now correctly generates uncompressed .grp files. The previous hack-ish code for generating them has been rewritten to work more like the encoder for compressed .grp files.
- Added an additional encoding optimization which recognizes duplicate rows in a frame to make the output .grp file size a bit smaller in some cases. This goes beyond what even Blizzard's own encoder did and makes some of the files even smaller than the originals. It was supposed to be included in the initial release of my encoder, but I did not figure out a certain bug until the partial rewrite today.

http://sfsrealm.hopto.org/dwnload.html#grpapi

The updates for SFGrpConv are more minor:

- When loading .grp files, the "Compressed GRP" check box is now checked or cleared upon opening to indicate whether the .grp file is compressed or not. Starcraft does not automatically detect the format, so compressed .grp files must be kept compressed and uncompressed .grp files must be kept uncompressed. This change allows the user to know which is needed.
- The "Open palette file..." button now only prompts for a palette when converting from .grp format, so as not to confuse the user.

SFGrpConv is now officially listed on the downloads page of my site at:
http://sfsrealm.hopto.org/dwnload.html#SFGrpConv