Donald Scarinci says, of the Teldec Lopez-Cobos performance of the
Mahler 9th, perhaps on a 5.1 surround system:

>You are experiencing a live performance

No, you are hearing a recording in your home.  Most of us who have actually
heard a live performance of the 9th (as I have been fortunate to, many
times)
would assert there is a tangible difference, no matter how good the
recording
or the playback equipment/environment.

len.