2 audio files take 30-40 seconds to load or delete.
I've tried OGG format, as well as MP3.
1 file is just over 1MB the other is 730K.
These loaded / deleted almost instantly in XP 32 bit.
[edit]
Ok, 30-40 seconds might be an overestimate.
The following code times the loading of a single OGG file that is just over 700K in size. On my machine it took just over 7 seconds to load, and 25 seconds to delete, as opposed to milliseconds when run on 32bit XP.
start = timer()
load audio 1, "Mus_Title.ogg"
t = timer() - start
print t
wait key
start = timer()
delete audio 1
t = timer() - start
print t
wait key
end
Audio file attached.