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The CD is 30 years old today
- jasongullickson 14y agoAfter reading this I just had to check just to see if we had a copy of 52nd Street, yep - https://www.murfie.com/albums/billy-joel-52nd-street--2 https://www.murfie.com/albums/billy-joel-52nd-street--2
- ChuckMcM 14y agoI remember when Sun Micro decided they could give their customers CDROM drives and save money shipping SunOS on CD rather than quarter inch tape (QIC). As I recall they were the first to do that. I also remember Eric Schmidt cringing at the price of buying a 'gold master' machine that could cut a master disk for the replication services.
- erickhill 14y agoWhen is the music industry going to actively promote (and select) a high definition music format? Like, Blu-Ray for audio-only?
- cowsaysoink 14y agoIs there a problem with the current format lacking definition? I thought the major factor for listening quality was listening equipment rather than the actual format (as the quality on cds is rather good).
- deleted 14y ago[deleted]
- jjjeffrey 14y agoTFA from this past submission was the thing that finally persuaded me to believe that CD quality audio is all you need for optimal stereophonic listening. //news.ycombinator.com/item?id=3668310
- dsk2012 14y agoNever. First, CD audio quality is good enough. Second, the market is in transition (already transitioned?) to a pure digital format, distributed either via flat files (e.g. mp3s), or via SaaS streaming services. Similarly, Blu-ray is probably the last physical format for movies.
- runjake 14y agoNPR mentioned this morning that digital music download sales far exceed physical media music sales already. This might explain there being virtually no record stores around anymore.
- squarecat 14y agoHeard that story this morning: http://www.npr.org/blogs/therecord/2012/10/01/162062347/the-cd-at-30-is-feeling-its-age http://www.npr.org/blogs/therecord/2012/10/01/162062347/the-... Made me consider stockpiling a supply of CD players to gouge future hipsters with...
- razzmataz 14y agoIt's not 'far exceed' - last year was the first that digital sales exceeded CD sales, by something less than a percentage point. Still, it's nothing to sneeze at.
- macchina 14y agoWell there is still an option for so called high definition digital downloads. Although MP3 audio quality is good enough, I wouldn't rule out the possibility of companies marketing "high frequency" "lossless" recordings at a premium price.
- zandorg 14y agoIt already exists. It's called SACD.
- sk5t 14y agoThe primarily advantage of SACD is that the recording has probably been remastered at the proper loudness to suit the tastes of SACD's audience--not for uniformly high levels of noise pollution on FM radio and its ilk.
- stan_rogers 14y agoThere were three and a lot of noise around them at the time: HDCD; DVD-A; and SACD. A very small handful of audiophiles cared, nobody else was paying enough attention to hear the difference. (For the people who are going to bring up Nyquist, that is true of the frequency domain, but not of the time domain, and differences in timing affect spatial resolution more audibly than they do timbre.) Really, it only matters to people for whom listening to music is an activity unto itself, and we're a really small group. You can still get good players, but the catalog of available media is a few Sony-owned classics in SACD and the odd bit of audiophile porn (you know, where the recording is amazing, but the actual performance wasn't really worth the bother of recording it).
- thirdhaf 14y agoAssuming 44.1kHz sampling rate the smallest path length difference between the ears is approximately 6.8mm. This corresponds to 2.3 degrees (with sounds source at infinity). Humans can place sounds with about 3 degrees of resolution so unless you have some citations I am seriously skeptical about the claim that higher sampling frequencies gives you anything whatsoever.
- stan_rogers 14y ago44.1KHz is not the output frequency; it's the sampling frequency from which an unambiguous 20KHz signal (of sufficient amplitude) can be reconstructed. So your calculation needs to take into account that the maximum peak resolution is 20Khz (and that 16 bits may not have sufficient amplitude sampling resolution to accurately interpolate the waveform peaks even if their frequency -- their spacing rather than their position in time -- can be reconstructed unambiguously).
- thirdhaf 14y agoCompletely agreed about 44.1kHz being a sampling rate. To make the rest of the numbers nicer I'm going to pretend we're talking about 40kHz sampling for the rest of this comment. It's clear that you can't distinguish between a 0-degree phase shifted 20kHz signal and a 0-degree phase shifted 60.0kHz signal (I thought we weren't going to talk about Nyquist here). However by the same token you CAN represent a 90-degree phase shifted 20kHz just fine. By way of example consider the bit stream (I'm also pretending 1-bit sampling for now) [0 1 0 1 0 1] which in this format represents a 20kHz signal. It's pretty obvious that we can represent the 90-degree phase shifted signal as [1 0 1 0 1 0] and there's nothing in the input stage that stops the original source from creating this particular type of signal. In fact we can unambiguously represent ANY phase shift in the same fashion, but as you point out then we start arguing about whether your sample has enough precision to unambiguously represent the input. With a 90-degree shift (corresponding to a ~23usec delay) we have none of the precision problems you allude to.
- pasbesoin 14y agoWell, there is/was SACD. I don't know much about it. It remains a niche market; whether sustaining or dying, I couldn't say. https://en.wikipedia.org/wiki/Super_Audio_CD https://en.wikipedia.org/wiki/Super_Audio_CD Interesting to think about it in comparison with Blu-Ray, which has also had issues around uptake. P.S. And https://en.wikipedia.org/wiki/DVD-Audio https://en.wikipedia.org/wiki/DVD-Audio , I see.
- msh 14y agoI am sad that the minidisc lost out to the cd :(
- SageRaven 14y agoMaybe if Last Action Hero hadn't been such a stinker, it might have caught on.
- rcxb 14y agoThe minidisc was a great technology at the time, but it's probably for the best that it didn't catch on. Minidiscs used lossy encoding, so ripping your MDs to MP3s would sound pretty bad. And these days, hard drives or flash storage is far superior. What would have been nice is if DVDs and Blu-Ray adopted the MiniDisc form factor... Scratch-free movies from Netflix, in a tiny package that's far quicker and easier to handle.
- sjwright 14y agoNo way! The CD is almost everything you could have asked for in a pre-1995 physical distribution medium. Better-than-your-ear sound quality, cheap to manufacture, no moving parts, relatively robust, allowed for very simple playback hardware designs... MiniDisc had audibly imperfect sound quality. The media has a complex diskette design with moving parts, is less robust, and requires more complex playback hardware. It was a backwards step in every respect except size and writability. The perfect product given the technology of the time would have been to just squeeze the regular CD format with all 700MB of data into the 8cm "CD3" form factor. Perhaps adding a "long play" mode suitable for audiobooks (e.g. mono 12 bit/32 kHz PCM).
- msh 14y agoThe cd was bad when moving, skipping due to bump was a big issues.
- mtoddh 14y agoFunny, I still remember buying my first CD as a kid, Motley Crue's Girls, Girls, Girls (ouch!). The packaging back then was different and they'd put the CDs in long boxes whereas now you just buy it in the jewel case. I remember how cool it was getting a boombox that had a tape deck and a CD player and being able to make better mixtapes.
- ChuckMcM 14y agoLong boxes so that when you put them into the place where the store used to display LP albums the title was still at a comfortable reading height.
- kree10 14y agoI remember reading that longboxes were a way to prop up the LP jacket manufacturers, since the materials and process were similar, but... "citation needed".
- squarecat 14y agohttps://en.wikipedia.org/wiki/Longbox https://en.wikipedia.org/wiki/Longbox
- tisme 14y agoAnother reason was so they wouldn't be stolen so often!
- heywire 14y agoI had nearly forgot about the long boxes that CDs came in!
- cowmix 14y agoI'm freakin' out that /. is exactly half the age of the CD.
- gbeeson 14y agoThis article also reminds me of where I used to pick up CD's back when they first came out - Tower Records in Mountain View, CA. CD's - still around; Tower Records - not so much. Interesting how it all worked out.
- stan_rogers 14y agoThe reason we loved Tower is the reason it died: just about every one of its stores was a record museum. You could find almost anything you were looking for, which meant that they had to stock just about everything anyone would ever be looking for. If I'd damaged (or inadvertently "lent" permanently) an album that was a somewhat obscure gem in a less-than-popular genre when I'd bought it ten years previous, I could always walk into Tower and get a new copy. Great for the customer, but I can't see it being a great business model overall.
- Turing_Machine 14y agoIt seems to work for Amazon. Of course they don't need to stock copies in zillions of locations.
- waterlesscloud 14y agoSo I dropped out of college for a few years, and during that period I worked at the Tower Records in Atlanta for about 2 years. This was First Gulf War time, so it must have been 90-91. Fun job, still friends with more people from that job than any other I've had. It was no one's first record store job, so everyone there was pretty knowledgeable about at least a couple musical genres. Company was not exactly a model of good management techniques, but whatever, as a sales clerk it was great fun. Anyway, I remember one night stuck on the cash register and bored, so I did some literal back of the envelope calculations. I took the CD storage capacity and the trend in increasing data rates for modems and figured out you'd be able to download albums in a practical amount of time in about the year 2000. I then told all my co-workers to not make a career of the record store business because we were all doomed by digital downloads in about 10 years. Funny how much I got wrong but still got the end result right.
- joeyh 14y agohttp://article.olduse.net/7038@philabs.UUCP http://article.olduse.net/7038@philabs.UUCP That's the second ever mention of the CD made on Usenet, back in July 1982. "It has no grooves, the digitally encoded recording lies beneath the disc surface, invulnerable to dirt and damage."
- bitwize 14y agoThat's a riot, Glass Tty VT220 in stunning amber. Just like my xterms!
- dollarpizza 14y agoinvulnerable to dirt and damage Yeah. Who'd'a thought they'd end up being even more perishable, & way more disposable than vinyl....
- exogen 14y agoWhat about under the same conditions, I wonder? People handle vinyl pretty delicately, but toss around CDs with reckless abandon.
- dollarpizza 14y agoThat's because CDs, as everybody knows, just don't deserve any better. Vinyl, meanwhile, practically calls out to be not only protected, but loved.
- sjwright 14y agoCompared to vinyl, the CD would have seemed invulnerable to dirt and damage. Even more perishable? What bunkum. Every time you play a vinyl record, you're causing a very small amount of irreparable damage. Whereas I can still retrieve a bit-perfect copy of my 20+ year old CDs, even if the underside is severely scratched. That said, how can you resist the psychological conundrum of knowing that every time you play a record, you are forever damaging it a little bit... That you're forced to destroy what you love. That like life itself, every minute it's turning brings death a step closer. That one day your old records might match your own ears' diminished high frequency response. There's something poetic there.
- tisme 14y agoThree years late to the party (because I couldn't afford a CD player) one customer instead of defaulting on a payment offered me his CD player instead. It came with this CD: http://en.wikipedia.org/wiki/Brothers_in_Arms_%28Dire_Straits_album%29 http://en.wikipedia.org/wiki/Brothers_in_Arms_%28Dire_Strait... And I'm going to have to play it now, for old times sake. Haven't played a CD in years.
- acchow 14y agoThe compact disc has always felt to me to be a decade ahead of its time. In 30 years of removable storage media, we've only managed to go from CD's 700MB to BDXL's 128GB. That's only 182 times the capacity, or 2^7.5