A memory dump of
www.digitalconcerthall.com/en/concert/play/2958
Shows that there are full files for the performance.
Code:
/specials/20120329_1_messiaen_turangalila/h264_high_2500.mp4
Assuming the full video has same base URL as fragments and manifest, that gives us
hdsvod.digitalconcerthall.com/z/specials/20120329_1_messiaen_turangalila/h264_high_2500.mp4
However we will need to figure out the querystring before we can download.