playing music from my hard drive?

:4-dontknohello , ive got a wireless hard drive pluged into my router with all my music on it, now when i click on the hard drive symbol on my computer and click music it wont allow me to play a hole album without clicking each individual song one by one when the othere song is finished ,im using windows media player and when i had all my music on my computer i would open windows media player and i could click random and it would play 1 of the hundred albums and so on , no that ive taken all the music off my computer and put them on my hard drive i cant do that any more, is there some way i can get media player to play like it use to without puting all the music bck on my computer . help will be very much appreciated ( ps sorry for the really really long question ) thanks again