I don't know what the quality or provenance of the recording you've DL'd is, but clicking the link below will give you a lossless (FLAC) version of Holloway's Fifth Concerto:
http://bit.ly/TvkfDN (programme note:
http://bit.ly/RlCso1)
and
Reliquary:
http://bit.ly/TpTKvZ (programme note:
http://bit.ly/X79QAD)
(both with intros and outros from Radio 3, i think)
Reliquary is an orchestration and expansion of some Schumann songs (somewhere between Elgar/Payne and Schubert/Berio), but the Concerto I've not heard. I was unexpectedly impressed with Nos. 2 and 3 however (which are on two separate NMC discs, and really
should be on one disc seeing as they're both about 40 minutes, but that's another story). Would be curious to hear your thoughts.