which 2 extract?

I have the pso files but when i go 2 extract on winrar it tells me that there r no files 2 extract. What the hell does this mean? And when i double click on the file's in winrar they open up agin and it shows the cdi.path name but where i have the file it only says hlg-pso.00. I know cdi is for Dj. But I don't know what 2 do from here.