Hi, I'm a student working on music retrieval for my final year project. I have a database of 3000 mp3 songs and I need to extract the mfcc features from these songs. However, some mp3 files could work with miraudio but some could not. The error is shown below. Could you help me with resolving this issue? ??? Error using ==> mirread at 49 ERROR: Cannot open file Hush Hush Error in ==> miraudio.miraudio>main at 172 [d{1},tp{1},fp{1},f{1},b{1},n{1},ch{1}] = mirread(extract,orig,1,0); Error in ==> miraudio.miraudio at 151 varargout = {main(orig,[],para,[],extract)}; Error in ==> mirdesign.evaleach at 56 y = miraudio(f,'Now',[ch(1),ch(2) 0]); Error in ==> mirfunction at 102 [orig x] = evaleach(orig); Error in ==> miraudio.miraudio at 153 varargout = mirfunction(@miraudio,orig,varargin,nargout,specif,@init,@main); Error in ==> miraudio.miraudio>eachchunk at 383 y = miraudio(orig,option); Error in ==> mirdesign.evaleach>evalnow at 682 [y argin] = d.method(argin,d.option,d.postoption); Error in ==> mirdesign.evaleach at 189 [ss d3] = evalnow(d2); Error in ==> mireval>evalaudiofile at 196 v = evaleach(d,single,name); Error in ==> mireval at 137 yf = evalaudiofile(d,a{f},sr{f},w{f},{},0,f,single,''); %% y = ... Error in ==> mirfunction at 82 o = mireval(o,filename,nout); Error in ==> miraudio.miraudio at 153 varargout = mirfunction(@miraudio,orig,varargin,nargout,specif,@init,@main);