Unfortunately I can't give you a specs link that states CD-DA is possible with PS4 hardware.  However, if you understand the technology behind disc drive lasers and the various formats you would know that the hardware is not the limiting factor.  The software is the limiting factor why CD-DA is not playable on the PS4.

This link from reddit is the best I can do as far is corroborating why PS4 doesn't play CDs being a software issue and not a hardware/laser issue.  It'd be way too time consuming explaining laser tech and providing proof that blu-ray lasers are perfectly capable of reading CD-DA disc data if the software was there.

You're saying it like optical discs are stuck in prehistoric times when they have also advanced in leaps and bounds, which doesn't only apply for Blu-Ray discs. Sure, the argument here is for physical media for videogames, but advancements are being done everywhere. I mean, it's nice for a 256GB MiniSD to exist, but Sony and Panasonic already developed the Archival Disc, which can go above 1TB. Yes, yes, it's not applicated for videogames just yet, but I also don't think Nintendo will use a 256GB MicroSD card for a game just yet. For storage? Of course. For games? I don't think even current-gen consoles have games that big.

Also, I don't know why you get so hellbent on twisting and dismissing my personal opinion TWICE.  I just stated why I didn't like cartridges and how inconvenient I found them then and now. And by this:

are you implying sound quality is not good on optical discs anymore when you said above:

In the end, these are different storage mediums, both with its advantages and disadvantages. And frankly, I'm way too preocupied with other things than trying to defend my opinion past this point. I mean, you can reply if you want; you'll just be talking to yourself.

Yes. I am new to technology.

Well. Reddit isn't evidence which is the sad reality.

BDROM and DVD/CD operate at different wavelengths and the Bluray specification doesn't gaurentee backwards compatability.
I know Sony promised to look at adding the feature when the console launched, but it has pretty much been silent on the issue, if there is a hardware limitation, then that would explain allot.

That is not what I said at all, nor was that my intention to convey such a message if you somehow garnered that from my paragraph.

Stacked TLC NAND can scale to over a terabyte as well.
Also, not a technology destined for the video game market anytime soon.

Also, Nintendo isn't using MicroSD cards in their cart. They are using ROM, not NAND.

How the hell did you come to that conclusion when my statement was: "And the sound quality is exactly the same as Optical Disk."

Correct. Both mediums do have their advantages and disadvantages.
I don't care about your opinion. I care about the accuracy of points that are being presented.

Apparently talking to myself is the only way to have an intellectual discussion.

Digital for me, I find physical formats annoying most of the time. That said; the Switch works really well with cartridges, even if the loading times are still quite long (which is more due to RAM and other limitations in loading assets than the speed of the medium itself).

If given the choice though, I take digital any day of the week, but with the Switch having storage space fit for a 2005 device and Sony having the slowest servers possible, basically having info packs towed by lame donkeys, this is is only a real option on PC for now for me.

Then why respond to my comment on first place if it's an opinion you care little about? Also...

Cards. It's one of the big reasons why the Switch has so much appeal to me. Cards just have a better feel to them than discs.

That's because War Zone wasn't very good period.  WWF No Mercy on N64 was better than any wrestling game on PS1.  

Ranks # 1 on this list, in fact (WCW/NWO Revenge which was also very good placed 6th.) :

http://www.denofgeek.com/us/games/wrestling/263351/the-20-best-wrestling-games-of-all-time

I really liked War Zone myself actually. And I definitely prefer Smackdown 1 and 2 over the AKI N64 games which were slower paced.

That I will agree with you on. I did love Smackdown 1 and 2 a lot, but WWF No Mercy and WrestleMania 2000 were and still are my favorite wrestling games. Even WCW/NWO Revenge. War Zone wasn't good on any platform, though.

I think people are forgetting one thing: if you own a game in digital, you don't actually OWN the game, unlike a phisical game...
as for me I prefer carts because I hate the loading to HDD bulshit disks do. if you are going to do that, might as well go digital...