hello i hope you can help...i bought "dvd home-theather-in-a-box " a year ago and now im upgrading to a 3d tv and 3d bluray player...i know i can connect my bluray player to my old home theater with a OPTICAL cable but my question is: would i be able to get the Surround sound from bluray dvd as i know some of them have HD Dolby digital, HD Master Audio etc ??? if not will i still get a normal Surround (sound from all 6 speakers) normal Dolby Digital??? i hope this makes sense to you! thank you!