Digital vs Optical for DVD player

I understand Macm's opinion, and agree to a point. I don't completely understand the science behind it all, however I also don't understand Quantum Physics. I do know this, I used a high end Transparent digital coax cable and compared it to a mid-hi end optical cable, and in my system the optic cable sounded anemic. However my brother prefers the optic cable in his mid-fi (I say mid-fi by comparing it to my system) system. What does this leave us with? Only testing for yourself will tell. AudioQuest's web site has a VERY detailed paper on signal transferes, well worth reading. However I do not think it is prudent to spend hundreds of dollars on coax digital...$350 tops!!!! And you can spend even less on fiber...Under $100

A point to ponder: If you believe it makes a difference, it will...

Don't know if it makes any difference to you, but Madrigal Audio recommends XLR 110 ohm digital cables over ST optical for their transport to DAC connectors. And they provide both these outputs (and others) on transport and also as inputs on DAC. Their position is that if "optimally" executed, the 110 Ohm XLRs have the "potential" to sound the best. I've compared Madrigal's XLR to the comparably priced Cardas and while the Madrigal was more detailed, the Cardas had better pace, rhythm, and timing-- I preferred (and kept) the Cardas. Based on Madrigal's recommendation for XLR, I did not try try the ST optical. Good Luck. Craig.