CD vs.same CD ripped to HD

If the DACs and the rest of chain are equal , optical disc will have less digital jitter than ripped file playback of the same album 

so playback of the CD /SACD will always sound better than streaming .

in a lot cases , people are comparing 

optical disk playback on old internal DAC vs ripped file on new external DAC

if one has oppo 105 , the disc will sound better than the ripped file playback to the same oppo DAC (usb input ) 

Obviously , one needs a resolving sound system to hear the difference 

All of my CDs have been ripped and reside on my server, I don’t notice any difference between the FLAC files or spinning CDs from my transport player, also streaming can be added as well.  All of these formats sound very good.

if one has oppo 105 , the disc will sound better than the ripped file playback to the same oppo DAC (usb input ) 

This is the exact opposite in my system. Ripped files sound amazingly good than the same played as discs through the Oppo UDP 205. I think a better transport would make a difference when discs are used.

optical disk playback on old internal DAC vs ripped file on new external DAC

BTW, my comparison is between the discs played on the Oppo Vs files streamed through my audio server using the same DAC (Oppo's internal DAC)

+4 @ George