Computer, CD transport or Network Player?

I currently have most of my music downloaded on my computer as FLAC files and listen to it through JRiver or Signalyst HQ (audio players for Windows) on my Dell desktop. The sound is amazing but I have a question and it is this:

Which do you find to have the highest sound quality;

1.  Redbook CD's directly played in a high quality CD transport?
2.  Ripped FLAC or Apple lossless files played through a high quality PC or MAC computer based audio player (such as JRiver or Signalyst for Windows or Vox or Clementine for MAC)?
3.  or music (from one's own private CD collection) loaded on a network player?

Using a DAC of course.
I once heard a demo in a friend's home of HDD vs. SSD, same music file.  The differences were not subtle, with the SSD offering much better everything.  This was a good, but modest system with bookshelf speakers, and plenty of tweaks.  I made up my mind that if SSDs get a bit cheaper, I will try to replace the HDD in my Vortexbox appliance with a SSD. 
I would think a non moving parts transport would be superior. But just wonder about the pros and cons of an SSD versus network player. How would a DSD DAC fit in this mix? Would it increase SQ?
Any of the three will work.  My personal preference by far is a silent Windows based PC.  Doesn't look like a PC if you choose the right enclosure.  It can be built for about $1,500 including an audiophile sound card, graphics card and very good Blu-ray optical drive.  Due to driver restrictions for the sound card it has to be W7.  Sounds phenomenal and no noise what so ever.  Allows you to do everything on your list and then some.  Personally, I fought this approach for quite a while. I am totally happy that I finally did this.
If interested I can give you the Email address to inquire and obtain the sound card. I can give you some advise on components as well.
Best of luck!
After lots of investigating my interest has been roused by PS Audio's DAC's, 1. DirectStream, 2. DirectStream Junior. Also impressed with what I've read about the exaSound e32 DAC. For all who are familiar with these DAC's I'd like to hear your opinion on them. My Calyx Femto came out in 2012 and as I said the sound is wonderful, but I wonder what's evolved since then and how might these newer DAC's compare. 
I hope that my experiences make sense and contribute. 
I've tried several paths for music.  I've  been running computer audio since 2005.  I've ran SPDIF, Toslink, USB.... I've used JPlay and Fidelizer. 
I've am on my 4th DAC,  I've had dedicated music servers in my system and have used general computers also,  towers and laptops. I have tried SSD drives, playing from Flash drives and from SD cards. 
So, the Melco N1A/2 or another dedicated music storage:  If you don't want to take the time optimize the computer being used for playback, these systems are superior to computer playback...
Although, when I have a dedicated computer for music playback and I turn off ALL background systems, use minimize drivers for any other software and dedicate this unit for Audio only,  I have gotten a computer to work as well as the dedicated servers. 
SSD vs hard drive:  SSD sounds better.  I have taken music and loaded it on an SD card, playing directly from an SD card slot,  this is most likely the best I've heard overall. (of course, this bypasses USB completely) 
As USB has improved,  I prefer USB over Toslink,  1 good friend of mine uses a Regen USB with external power supply,  I haven't tried that,  One of my personal problems, is that I'm very cheap and always feel that there must be an inexpensive alternative out there that is just as good, Of course,  I've been proven wrong on that one,  but I tried a couple of cheap Chinese USB solutions that go from the USB output on the computer to the cable that runs from the DAC,  trying to clean up the power and reduce jitter... the 2 Chinese plugs, both made a minor difference,  I recently put in a Holo Titanis USB filter,  this was very audible.  I was expecting better midrange and hi end, which I did get a bit of,  but to my surprise,  the biggest difference was a blacker back ground,  deeper, yet tighter bass and a slight improvement in image placement within the soundstage.
I hope that my experiences all make sense and may help someone.  I really enjoy reading others experiences, occasionally,  I pick up some new insight.  Tim