blu-ray audio


If I use an external dac with a blu-ray player, apparently I cannot get lossless audio for movies unless it is an HDMI dac. Per oppo:

"Due to bandwidth limitations, high resolution audio formats such as Dolby Digital Plus, Dolby TrueHD, DTS-HD High Resolution and DTS-HD Master Audio cannot be sent through the coaxial or optical digital audio output. A reduced resolution version of the same audio track will be output instead. To listen to high resolution audio formats in their best quality, please use the HDMI connection..."

My question is if I use my computer to play blu-rays or ripped bluray mkv  files and use a usb dac will I get lossless audio?  Using an ifi idsd.  thank you. 

 
majorc
Carlos, I don't understand "will despite everything I have the lossless blu ray files." Are you saying that you are feeding a dac with a spdif converter and are receiving lossless, or are you asking a question? 
Not sure why "lossless" is being tossed around. No where in the process or equipment mentioned is there any conversion to lossy files. And, PCM is lossless.
Native PCM is lossless. The audio output from blu ray for movies is either native PCM or more frequently either a lossless or lossy codec decoded to PCM. A blu ray player will not output the lossless codec decoded to PCM via spdif - only via HDMI or analog.  the q is if one uses a computer to play a ripped blu ray can the lossless codec decoded to PCM can be passed through spdif.