How to find the good CD recordings?


I'm new to high end audio but have a decent system. One of the things I've noticed with this new (old) system, is that some of my CDs which I used to think sounded fine just don't sound all that good anymore while some of them sound great. A lot of these CDs are 30 years old and came from CD clubs (remember those?) and typical record stores.

I've noticed in particular that some of my Led Zep CDs just sound a little flat and a little shallow while some of the Pink Floyd and Rush CDs sound quite good. 

Is this just a matter of Floyd and Rush having higher production quality from the beginning? 

Would later "remastered" Zep CDs sound better? Is "remastered" always an indication of better or superior quality? Is it just marketing hype sometimes?

Anyway, with this new system I am inclined to buy the best quality recordings of any newer music I buy and possible replace some of my old favorites.

So is there a place on the internet where one can go to get reviews of the actual recording quality and not just the music itself. I don't see iTunes or Amazon as particularly useful here. At this point I am not interested in pursuing vinyl or high end audio files. I'm still just getting my feet wet and CDs seem like a cheap way to do that.

Any assistance much appreciated,

George
n80

Showing 8 responses by geoffkait

Timely tip: all things being equal CDs with a solid silver disc around the spindle hole sound worse than those with transparent rings. Don’t believe me? Use a Dremel tool with the abrasive attachment and remove the solid silver layer around the spindle hole. Theory - The solid silver disc is highly reflective of scattered laser light, thus produces more noise.
One can’t help wondering how many Led Zeppelin CDs and LPs over the years were mastered in Reverse Polarity. I bet a bunch.
By coincidence I found the first Led Zeppelin II LP in some thrift in MD. It’s the one with STA etched in the trailing vinyl. Anyone heard it? It’s the one they say had to be remastered due to some cartridges flying out of the groove. But it’s not the SS RL issue.
Speaking of which, one wonders what role, if any, Polarity plays in the differences among CDs.
From what I can tell from the Dynamic Range Database the most dynamic range compression occurs for the 2014 remasters. It is possible that aggressive compression buys you something although I can’t imagine what.
That’s why it’s called Loudness Wars. Because when they overly compress the CD dynamic range they can make it louder. So a clue that a given CD has been overly compressed is often that you have to turn the volume down. Whereas for CDs with relatively high dynamic range you might find you have to turn the volume up.