Though I did copy a few vinyls to CD (convenience) I don't plan to, as mostly I have CDs.

I did, however, copy lots of 4 channel live material to CD. Did it ways: (1) mixdown 4 ch analog to 2 chan analog; (2) Convert 4 ch analog to 4 of the six channels in a dts format. Copied the 4 analogs to a digital hard drive machine. Imported into computer. Then using a program assigned the (now on computer) 4 channels into a digital bitstream. The result is a dts disc with 4 channels, identical to the original tape. Playable thru my Sony 950 DVD;Any of my Oppo machines.....and from a non-dts machines such as my Sony 455 or TASCAM CD01U thru a Millenium dts decoder. So the original imaging of the performance is still there. Output to 4 speakers across the front. Decoder gives me digital or analog outs. Digital will feed the room in a 5.1 environment. The analog plays thru 7.1 analog inputs.
Happy "camper"