I live in a small space that will not be able to have true 5.1 speakers in or positioned well. Plus I'm sure my walls are not sound proof enough not to bother others should loud sounds like explosions or gun fire happen. Reading online I read about a device called MixAmp Pro that takes the Dolby 5.1 sound information either from the usb or the other digital inputs and makes a virtual 5.1 Dolby sound from it and many reviewers seem to like it. I'm considering trying it out plus buying the Superlux HD-668 B headphones with it (one day like to get the AKG K702 or K712 Pro headphones for music and movie watching both from my blu-ray player and computer in another room should this work) but after some reading I discovered alot of blu-rays movies use DTS and not the Dolby that Mixamp decodes and makes virtual 5.1. I don't know if my blu-ray player (a Sony BDP-BX510 with uses a coaxial and HDMI output) can take a DTS coding and make it a Dolby coding that Mixamp can use (something I'm going to have to look up but so far I haven't gotten any answers). Thus I also don't know if there might be a way between that can do so such as Blu-ray player by coaxial -> ??? -> Mixamp pro -> Headphones for 5.1 listening (I read 7.1 virtual sound isn't as good as 5.1 virtual sound for headphones. Figure this was the best area to post my question.