Good summary but DSD does not involve any samples as with PCM. The stream of 1' and 0's bits is created by the modulation of a bit clock carrier a process called Pulse Density Modulation of which DSD is specifically the 1 bit version. 1 bit PDM capture can be argued as not being digital - certainly not in the sense that PCM most definitely is.
Thanks for this BUT: there appear to be a number of DSD formats. Not all DACs are able to convert each of them.
DSD 64 = the basic rate - sample rate is 64 times that of a CD - this seems to be the most common DSD format available on HD TRACKS, and HighResAudio very few albums are distributed in this format.
DSD128 = Double Rate - sample rate is 128 times that of a CD - this seems to be the maximum "resolution" format generally available on HD TRACKS, and HighResAudio very few albums are distributed in this format.
DSD256 = Quad Rate = 256 times -- I found about 10 titles on HD Tracks - also see below
DSD 512 = Octa Rate = 512 times -- - also see below.
For those hunting downloadable DSD -- try NativeDSD (https://www.nativedsd.com/) - who had 289 titles in DSD512 and many more at lower resolution when I looked this morning.
Roon will convert a PCM file to DSD, the difference is jaw dropping, especially on anything below 88/16 resolution. Sadly Roon now costs $700 for a lifetime membership, or $10 a month. I think it worth every cent, you need to provide your own music, via CD rips, Tidal, or Qobuz. My March DAC will decode up to DSD256, works well with my i7/Windows 10 NUC