One way around the issue being introduced with product-builder would be the upgrade of libcdio to version 2.1 - where the bigendian file size is discarded in favor of the little endian stored file size - thus ignoring the error introduced by product-builder (not eliminating the error alltogether though) This should be libcdio upstream commit http://git.savannah.gnu.org/cgit/libcdio.git/commit/?id=a4155f014c640e6896a41205a0f997be8db33808