LDA-730 and 5.1 Surround Sound?

I recently bought a LDA-730 DVD/XVID/DIVX player for really cheap and am wondering if it will play 5.1 surround sound. It has Digital Optical Out and Coaxial Optical Out. However, I can't seem to find anything that says it definately plays the 5.1 audio track. Does anyone know? I have always assumed that if it has digital out it will play it.