API const correctness. The char *path arguments to audiodb_open() and audiodb_create() should be const; make it so. Also arrange for the datasize, ntracks and datadim arguments to audiodb_create() to be unsigned to match the fields in the internal audioDB class. Technically this is an ABI change, but since nothing is calling this function with anything other than zero arguments yet (correct me if I'm wrong) no-one should notice. (If you notice, shout)