Mythologies on MoFi - Something wrong? ?

I can't speak on the Mythologies album but there seems to be some confusion here. If a recording is not as loud as some others (a lot of modern, or modern rock recordings for example) that does not mean it's compressed. Compression is actually when the recording is produced at a louder volume and the dynamics of the recording are narrowed. Which means usually the volume of the quieter parts of the recording is raised to more closely match the louder parts of the recording. Thus everything sounds louder and you need less of the volume knob to get the music loud. Sometimes barely any at all and it's VERY LOUD. I much prefer the wider dynamics as that is what music generally has, dynamics. Squeezing out the dynamics is what makes the recordings lifeless, good for earbuds and a car system though if that's where your at. A good stereo system with the proper volume adjustment will certainly bring most lower volume recorded music to life. Maybe some don't like to adjust volume in the new pitiful quality I-tunes world?

Yesterday we played Cafe Blue, 45 rpm mofi box edition, and were amazed by the sound. Next, the mofi Mythologies, at 33 rpm. This was clearly a step down in sound quality. I have been thinking - should I invest more in 45 rpm records, and less in 33. Since these generally sound better. 33 rpm was decided against protests from RCA recording engineers (who wanted 45), if I am correct - back in the 1950s. 

45rpm (rounds per minute) doesn’t save a bad recording...or poor music...of course. But what was "marginal" at 33,3 rpm may now become engaging. It reminds me of my experience with the Revox A77 recorder - turn the tape speed up to double (from 3 3/4 ips to 7 1/2 ips -. inches per second), and the sound will be better, with more enjoyment and engagement on the listener side. Same thing with my Tascam DSD recorder - double DSD is better, if only by a notch.
So of course the speed of the record is only one part of the sonic picture, but it means more than I have realized. My failure rate with 33 rpm albums I have bought (failure = collecting dust, seldom listened to) is far higher than for the 45s I have bought. This may be due to more expense and more scrutiny before buying the 45s, as well as the better sound quality. I only have 30 or so albums in 45 version. Almost all of these are great, in terms of sound, although it varies with the original take. If the recording is poor, the "lift" by the new resolution wont maybe matter so much. Still, I’ve yet to see a case where I’ve actually REGRETTED a 45rpm buy due to no sonic impact. It is allways there, but how much it matters, depends on the recording and production. Grunge in, grunge out. But with higher speed, more of what I’ve thought was "grunge" emerges as integral and melodic parts of the music.