flag in that it's designed to help someone understand how cdparanoia works, rather than troubleshoot. Setting TRACE_PARANOIA to 1 traces stage 1, 2 trace stage 2, and 3 traces both (and is extremely verbose). Additionally, committed a tentative bugfix to paranoia itself, which was causing the libcdio test case to break. If it introduces unexpected behavior, it should be backed out. So far it seems to fix all test cases.