Re: Find your own threshold
Spot on, AC.
Its a sliding scale:
Low bitrate: 'Metallic goblin laughter' artefacts clearly audible to everyone.
High bitrate: indistinguishable by ear from source.
Of course, storage is so cheap that is is a no-brainer to rip CDs as FLAC, if only to be able to transcode them to any desired future format without cumulative compression artifacts creeping in. This is much the same philosophy as scanning photographs at a higher than required resolution and saving them in a lossless format (so to avoid any possibility of jpg > edit > jpg > edit > jpg etc jaggedness occuring).