PyramidWorkshop is an image-compression System based upon the scientific work of John Robinson (inventor of BTPC) about image-compression with adaptive linear predictors and is in average more efficient than PNG/JPEG2000.
RPM Workshop is for the experienced/professional packager.
This tool will give the packager GUI access to take a new tar file and create a spec file and RPMS or open an exsisting spec file for updating.