by Ken Task.
Are all the URL's pointed to a file name as in your example?
CUP BECH Past Papers/3/02 Test 1,Part 1,questions 1-12.mp3
Are /CUP BECH Past Papers/ and /3/ a folder/directory? or is it part of the filename of the .mp3 file?
There are some characters that are reserved and cannot be used in a filename and served by a web server ... especially if Linux.
If that is the filename, what would happen if you changed the filename to:
CUP_BECH_Past_Papers-3-02_Test_1_Part 1_questions_1-12.mp3
'spirit of sharing', Ken