Sorry Menschenstimme, I have to disagree with you there.
St. Sernin de Toulouse is probably my favorite organ - one of the most fiery Cavaillé-Colls imaginable.
However, this recording features a dull, tepid performance from Michael Murray. Sad, because Franck requires passion!
Furthermore the organ was in a deplorable state at the time of that recording. There are wind leaks, pitch sags, and an overall sense of decrepitude.
The Telarc sound from the '80's is rather dated now too. For the most 'bang for the buck' I heartily recommend getting CDs that feature 24-bit recording, such as Daniel Roth's recording of Liszt and Ritter at St-Sulpice.
Also highly recommended: my current favorite recording of the Duruflé Toccata, by Louis Robilliard at St-Sernin (post restoration). Here is a link:
http://www.festivo.nl/nl/cd.php?id=6961942
Soubasse32