Not all is Dr, I've albums with low Dr and sounds horrible but another albums with low Dr have fantastic sound. I've several Blu spec Cd2 and they've outstanding sound. I recommended to buy and I'm searching pretty maids blu spec
I really feel like they're better than standard redbooks, but I don't have any science to back up, just my ears. One thing I notice is the background is darker on Blu-specs (to my ears) I'd highly recommend this release , it destroyed my first U.S pressing which I already thought was a really good CD. The Alan Parsons Project - Eye In The Sky
They are standard Red Book CDs, otherwise Sony wouldn't be able to put the Compact Disc Digital Audio logo on them. And "blacker blacks" aren't a thing on CDs. Your player is either decoding the digital audio correctly or it isn't. Any improvement you may hear is attributable to better source material and/or better mastering.
I have several of these blu spec cd2 and the previous blu spec cd. And what some have commented here is true, it all depends on the master used. Some are remarkably good and some are awful. There is no notable advantage that can be directly related to the format. Theoretically by using the same manufacturing technology as blu ray, Sony Japan promises a better listening and reading experience. Personally, I don't find any advantage. The ones that really have a better sound are a matter more related to the master than the medium itself. Good vibes
Just to clarify: That only applies to the master. The copies of it that you actually play are manufactured exactly the same way as any other CD.
The brand name applies to using master tooling and etch processes that are refined enough for Blu-Ray. Blu-Ray tech actually uses a grown silicon wafer instead of glass, noted here to be back-compatible with DVD: Sony Global - Press Release - High Capacity Blu-ray Disc-ROM Mastering System "PTR-3000" Now Available DVD is more protected, and of shorter focal length. One wonders if a DVD-like top layer could be used for CD instead of spin-coating UV cure resin very thin, thus unifying production. Bits are bits, unless you have read errors.
Unless the original analog tapes were threaded up, and a fresh new transfer was done with superior skills - and good taste in mastering was applied resulting in an impressing improvement over previous CDs issued. But yeah, good resale value is a given ain't it.
I'm not into the deep dive science of music, or plots & charts, so all I add is there is a sonic difference between these and regular CDs, where these seem to have more clarity, and detail compared to the regular CDs. I know this having several of these discs, as well as their normal version - example I have both a standard Japanese paper sleeved copy of Miles Davis Bitches Brew, as well as standards copies of Kind Of Blue, Get Up With It, and My Funny Valentine, and in each case the Blu-Spec version has much more detail, and dynamic range. Also have both regular and Blu-Spec versions of Spyro Gyra Catching the Sun, and Morning Dance. It's the same here, the Blu-Spec versions sound much better, And I'll also add less "digital".
A number of 2 CD sets were issued with a regular CD and a Blu-spec CD of the same music. Some of these sets may still be available from CD Japan. Because they were promos they were priced very reasonably.
I've never ever seen any Blu-Spec CDs (Blu-Spec / Blu-Spec 2) released where there's both a Blu-Spec CD and regular version sold as a set. Nor does that make sense. Link?
I have similar sets with SHM-CDs. They were created as promos for comparison purposes. I bought them because they had nice song selections and they were cheap.
They're great for testing the placebo effect, since the regular and Blu-Spec copies of the disc are bit-for-bit identical. I was actually quite surprised they didn't use different mastering to create an audible difference, like on hybrid SACDs where the normal CD layer has extra clipping to purposely make it sound worse.
Blu-Spec's made in Japan are remastered. I have some and they've clearly been remastered, some for the better. Others have the analytical tipped-up sound many Japanese producers like. One trait I hear with all my Blu-Specs over a standard Redbook is more clarity and a blacker background.
I was talking about the demo packages that bundled a standard CD and a Blu-Spec CD of the same music, touting that you can "feel the difference" between them. As far as what comes out of your CD player, the two discs are 100% identical.
