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Betamax vs. VHS (Encore)

2025/3/15
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@主持人 :我将回顾Betamax和VHS录像带之间的竞争。这场竞争最终以VHS的胜利告终,但长期以来,人们普遍认为Betamax在技术上更胜一筹,只是因为市场策略上的失误才导致失败。这场竞争发生在20世纪70年代末和80年代初,当时录像带是家庭视频的主要存储方式,几乎每个发达国家的家庭都有录像机。人们可以用录像带观看电影、录制电视节目或拍摄自己的视频。在探讨Betamax和VHS的优劣之前,我想简要介绍一下录像带的历史。 在二战期间,美国无线电工程师注意到德国广播的一个奇怪现象:他们重复播放的节目的质量与现场直播的节目质量一样好。这在盟国是不可能的,因为盟国的录音需要使用蜡盘。战后,人们发现德国已经研制出能够以极高品质录制音频的磁带。 这项技术在战后迅速传播,并从20世纪50年代初开始用于录音。这就是为什么这个时代的录音质量有了如此大的飞跃。人们意识到,同样的磁带也可以用来记录新兴媒体——电视的信号。虽然视频信号更复杂,但可以使用更宽的磁带进行保存,同时还可以录制音频。 世界上第一次录像带演示是由Bing Crosby公司于1951年11月11日进行的。包括BBC和RCA在内的其他公司也在50年代初开始尝试录像带技术。在电视的早期,广播节目的录制是通过一种叫做kinescope的设备进行的,这实际上是一个对着视频屏幕的电影摄像机。 第一台能够替代kinescope的商用录像机是由芝加哥的Ampex公司于1956年4月销售的。到同年11月,哥伦比亚广播公司(CBS)已经开始使用录像带播放预先录制的节目。录像带技术(VTR)在电视网络中迅速普及,因为磁带可以重复使用,而且成本远低于使用kinescope。 人们很快就开始设想家用录像带。卷轴式录音机已经在高端音频消费者中占据了一席之地。当然,视频也一定会有市场。第一个家用VTR系统叫做Telcan,它是“电视在罐子里”的缩写。它是由英国诺丁汉电子阀公司于1963年推出的。该设备极其昂贵,价格超过3万英镑(按通货膨胀调整后的价格)。 这是一个开卷式系统,只能录制20分钟的视频,而且只能录制黑白视频,因为当时英国只有黑白电视。不用说,这个系统并不成功。1965年,索尼发布了CV-2000,这是他们的第一个家用录像带系统。它比Telcan系统便宜得多,但也有同样的局限性。20世纪60年代,出现了新的磁带格式,更容易播放。 磁带被封装在一个盒子里,这意味着你不需要处理裸露的磁带。盒式磁带的概念被应用到录像带,并引入了几种录像带格式。索尼于1971年发布了他们的U-matic格式,飞利浦于1972年发布了他们的VCR格式。这些主要面向专业视频制作商。第一个家用录像带系统既不是来自索尼也不是来自飞利浦。它被称为Cartrovision。 Cartrovision设备是带有内置磁带播放器的电视机。你可以购买空白磁带来录制节目,也可以租用预先录制的电影,这是业界首创。预先录制的盒式磁带的设计使得它们不能在标准的Cartrovision播放器中倒带。Cartrovision播放器非常昂贵,售价为1350美元,约合9000美元(按通货膨胀调整后的美国美元)。 事实证明,这些磁带对湿度非常敏感,绝大多数磁带都在仓库里损坏。Cartrovision的销量低迷,公司在一年的时间内就倒闭了。今天,Cartrovision电视机极其罕见,对收藏家来说价值不菲。Cartrovision的想法并不坏。主要的电子制造商可以看到家用录像带播放器的益处。这最终引出了本集的主题。 1974年,索尼开始研发家用录像带系统,并在1975年发布了他们的系统,他们称之为Betamax。这个名字有两个含义。第一个是因为它是一个日语单词,描述了视频信号是如何记录到磁带上的;第二个含义来自希腊字母beta,它的形状看起来像磁带在机器中的物理运动方式。 第一批发布的Betamax盒式磁带长156毫米或6.1英寸,可以存储一小时的录像。大约在索尼研发Betamax系统的同时,日本的JVC公司也在研发他们自己的格式,他们称之为VHS(Video Home System)。JVC于1976年向公众发布了他们的系统。VHS磁带比Betamax磁带大,但它们可以录制两小时的视频,而Betamax只能录制一小时。 在有两个或多个竞争的技术格式的世界里,通常只有一个会存活下来。对于每个人来说,同意某种标准更容易,而不是让不兼容的格式四处漂浮,造成混乱。在这里,我应该谈谈围绕Betamax与VHS之争几十年来的传说。传说说Betamax是一款更优秀的产品,技术上比VHS更好,但无论如何它在市场上输了。 它和QWERTY键盘一起,被用来证明最好的产品并不一定能获胜。我在之前的节目中讨论过QWERTY键盘的问题,简而言之,QWERTY键盘实际上并不比其他键盘布局差。那么Betamax真的比VHS好吗?有一些非常有技术含量的论点可以支持Betamax。首先,Betamax的视频分辨率为233条水平线。VHS只有220条线。 从技术上讲,Betamax确实允许更高的视频分辨率。然而,233和220之间的差异非常小,以至于大多数人如果同时看到这两个系统运行,也无法分辨出区别。Betamax还提供了一种叫做Betascan的功能,允许高速向前和向后搜索图像。此外,Betamax磁带也更小巧、更紧凑。 因此,可以说Betamax在某种技术上是优越的。但是Betamax的技术优势被认为是微不足道或无关紧要的。考虑到Betamax领先了一整年,并且在技术上比VHS有一些优势,为什么最终VHS获胜了呢?最大的原因是第一代Betamax磁带只能录制一小时的视频。 如果你想录制电视上的体育赛事,你无法用一根Betamax磁带做到。你也无法在一根Betamax磁带上观看整部电影。当VHS磁带发布时,它们可以录制两小时的视频,这足以播放一部完整的电影,也足以录制大部分比赛。当谈到人们实际上想用家用录像机做什么时,VHS更好地满足了他们的需求。 此外,VHS的质量与广播电视几乎相同,因此几条额外的水平分辨率线并没有什么区别。虽然可以存储在磁带上的视频量可能是VHS最终获胜的最大原因,但这并不是唯一的原因。索尼将他们的系统视为专有格式。他们试图让日本国际贸易和工业部将Betamax作为整个行业的标准。 索尼将保留所有权并控制标准,然后将技术许可给其他公司。JVC认为开放标准更好,每个人都可以使用该标准而无需支付许可费。在这些格式上市后不久,就进行了更改以适应市场条件。索尼最终发布了一个运行速度较慢的Betamax版本,可以存储两小时的视频。然而,各公司开始发布可以在一盘磁带上录制四小时,最终六小时视频的VHS播放器。 人们对在磁带上存储更多视频的需求远大于对更高质量视频的需求。四个小时足以录制一场完整的橄榄球比赛,而Betamax做不到。由于VHS机器是由许多公司制造的,因此竞争也更加激烈。Betamax机器只由索尼和几家许可该技术的其他小型制造商制造。 到1980年,VHS在美国的市场份额为60%。到1981年,VHS的市场份额为75%,到1984年,其市场份额达到92.5%。由于VHS是一种更开放的格式,不需要许可,因此它得到了电影制片厂的更多支持。更多电影以VHS格式发行,有些电影根本无法以Betamax格式发行,因为它们太长了。 当录像带出租店开始激增时,它们倾向于选择更多人拥有的、并且有更多电影可供选择的格式。最终,VHS推出了新的改进版本。VHS-C是1984年发布的VHS的紧凑型版本,可以放入适配器中,在任何VHS设备上播放。Super VHS是1987年发布的更高质量的VHS版本。到1988年,索尼开始生产自己的VHS播放器。 尽管录像带格式大战在20世纪80年代初就基本结束了,但索尼从未完全放弃Betamax。1985年,他们推出了Super Betamax,1988年,他们推出了Extended Definition Betamax。索尼一直生产Betamax录像机直到2002年,并一直生产Betamax录像带直到2016年3月。今天,还有一些第三方公司仍在生产少量Betamax盒式磁带。 VHS是主要的视频录制平台,直到2002年DVD销量最终超过磁带销量。VHS的成功和Betamax的失败,并非技术优劣的决定,而是市场需求和策略的差异。人们并不关心旧的标清电视机上图像质量的细微差别。 他们想要的是录制和播放更长的视频。索尼试图控制和获利于整个Betamax生态系统,而JVC则使VHS生态系统开放,这也确保了VHS最终会获胜。

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The following is an encore presentation of Everything Everywhere Daily. In the late 1970s and early 1980s, a war erupted in the world of video technology. Two competing videotape formats fought to gain supremacy in the market. In the end, one format crushed the other and was left as the victor. However, legend holds that the inferior format was actually the victorious one. Learn more about the Betamax vs VHS videotape wars, and if the worst technology actually won, on this episode of Everything Everywhere Daily.

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If you like your money, Mint Mobile is for you. Shop plans at mintmobile.com slash EED. That's mintmobile.com slash EED. Upfront payment of $45 for three months, five gigabyte plan required, equivalent to $15 a month. New customer offer for first three months only, then full price plan options available. Taxes and fees extra. See Mint Mobile for details. There are some of you listening to this who will remember the videotape wars quite well. Or if you don't remember the format war, then at least you remember videotapes.

For those of you too young to remember videotape, back in the days before Netflix and the internet, you could store video in an analog format on magnetic tape. The tapes were extremely popular and most households in developed countries had them. You could buy or rent movies on tape, record directly from television, or record your own videos on tape. Before I get into the Betamax vs VHS formats, I want to give a brief history of videotapes because, quite frankly, this seems like an entire appropriate place to do so.

If you remember back to my episode on the history of audio recordings, during the Second World War, American radio engineers noticed something odd about German radio broadcasts. The quality of their repeated episodes was just as good as the quality of their live episodes. This was not the case in allied countries where recordings had to be made on a wax disc. After the war, it was discovered that the Germans had developed magnetic tape that could record audio at very high levels of quality.

The technology spread rapidly after the war and began being used for audio recordings in the early 1950s. This is why there was such a great leap in audio quality in the recordings from this era. The same magnetic tape, it was realized, could be used to record signals from the new medium of television. While a video signal was more complex, it could be saved using a wider tape in addition to recording the audio as well.

The world's first videotape demonstration was given on November 11, 1951 by Bing Crosby Enterprises, the company owned by the singer Bing Crosby. Other companies, including the BBC and RCA, began experimenting with videotape in the early 50s as well. In the early days of television, recordings of broadcasts were made on a device known as a kinescope, which was literally a film camera pointed at a video screen.

The first commercial videotape recorder that was good enough to replace a kinescope was sold by the Ampex Corporation out of Chicago in April of 1956. By November of that year, CBS was using videotape to broadcast programs that had been recorded earlier. Known as VTR for videotape recording, the technology became widespread within television networks because tapes could be reused and they cost a lot less money than using a kinescope.

It didn't take long for people to begin imagining videotapes for home use. Reel-to-reel audio machines had developed a niche with high-end audio consumers. Certainly, there must be a niche for video as well. The first home VTR system was called Telcan, which was short for television in a can. It was released in 1963 by the Nottingham Electric Valve Company in the UK. The device was incredibly expensive, costing over 30,000 inflation-adjusted pounds.

It was an open reel system that could only record 20 minutes of video, and only in black and white, which was the only type of television available in the UK at the time. Needless to say, the system was not a hit. In 1965, Sony released the CV-2000, which was their first consumer videotape system. It was much cheaper than the Telcan system, but it had the same limitations. The 1960s saw the release of new magnetic tape formats for audio, which were easier to play.

The tape was encased in a cassette, which meant that you didn't have to handle the raw tape. The cassette concept was adapted to videotape, and several videocassette formats were introduced. Sony released their U-matic format in 1971, and Philips released their VCR format in 1972. These were marketed primarily to professional video producers. The first home videocassette system was from neither company. It was called CartraVision.

Cartrovision devices were entire televisions with tape players built into the TV. You could purchase blank tapes to record programs, but you could also rent pre-recorded movies, which was an industry first. The pre-recorded cassettes were designed such that they could not be rewound inside a standard Cartrovision player. The Cartrovision players were very expensive, selling for $1,350 or about 9,000 inflation-adjusted U.S. dollars.

The tapes, it turns out, were highly sensitive to humidity and the vast majority of them were destroyed sitting in warehouses. Cartrovision sales were flat and the company went out of business within a year. Today, Cartrovision televisions are extremely rare and are worth a lot of money to collectors. The idea behind Cartrovision wasn't a bad one. Major electronic manufacturers could see the benefit of consumer video cassette players. Which finally brings me to the subject of this episode.

In 1974, Sony began work on a consumer video cassette system, and in 1975 they released their system, which they called Betamax. The selection of the name had two meanings. The first was because it was a Japanese word which described how video signals were recorded to the tape, and the second meaning was from the Greek letter beta, the shape of which looked like how the tape physically moved in the machine.

The first Betamax cassettes which were released were 156mm or 6.1 inches long and could hold an hour of recorded video. Around the same time that Sony was working on the Betamax system, the JVC Corporation in Japan was working on their own format, which they called VHS for Video Home System. JVC released its system to the public in 1976. VHS tapes were larger than Betamax tapes, but they could record two hours of video as opposed to Betamax's one.

In a world with two or more competing technical formats, usually only one of them will survive. It's a lot easier for everyone to just agree on some sort of standard that everyone can use, rather than having incompatible formats floating around that cause confusion. Here I should address the legend which has surrounded the Betamax vs VHS debate for decades. The legend says that Betamax was a superior product and technically better than VHS, but it lost out in the market anyhow.

It, along with the QWERTY keyboards, are used as examples to prove how the best product doesn't necessarily win. I've addressed the QWERTY keyboard issue in a previous episode, and the short version of it is that QWERTY keyboards weren't actually worse than alternative keyboard layouts. So was Betamax really better than VHS? There were some very technical arguments to be made for Betamax. For starters, the video resolution of Betamax was 233 horizontal lines. VHS only had 220 lines.

Technically, Betamax did allow for higher resolution video. However, the difference between 233 and 220 was so small that most people couldn't tell the difference if they saw both systems running side by side. Betamax also offered something called Betascan, which allowed for high-speed image search forwards and backwards. Furthermore, Betamax tapes were also smaller and more compact.

So, there is an argument to be made that Betamax was in some technical way superior. But the technical advantages of Betamax were seen to be small or inconsequential. Considering that Betamax had a full one-year head start and they had some technical advantages over VHS, why was it that VHS won out in the end? The biggest thing was that the first generation of Betamax tapes could only record an hour's worth of video.

If you wanted to record a sporting event on television, you couldn't do it with a single Betamax tape. You couldn't watch an entire movie on a single Betamax tape either. When VHS tapes were released, they could record two hours of video, which was enough for a full movie and enough to record most of a game. When it came to what people actually wanted to do with a home video player, VHS met their needs better.

Moreover, the quality of VHS was pretty much the same as broadcast television, so a few more lines of horizontal resolution didn't really matter. While the amount of video that could be put on a tape was probably the biggest reason why VHS won in the end, it wasn't the only reason. Sony viewed their system as a proprietary format. They tried to get the Japanese Ministry of International Trade and Industry to adopt Betamax as the standard for the entire industry.

and Sony would retain ownership and control the standard and would then license out the technology to other companies. JVC felt that an open standard would be better, a standard that everyone could use without having to pay a licensing fee. Soon after the formats hit the market, changes were made to adapt to market conditions. Sony eventually released a version of Betamax which ran the tape slower to hold two hours of video. However, companies began releasing VHS players which could record four and eventually six hours of video on a single tape.

There was much more consumer demand for storing more video on a tape than there was for higher quality video. Four hours allowed for an entire football game to be recorded, which was something Betamax couldn't do. Because VHS machines were created by a multitude of companies, there was also more competition. Betamax machines were only built by Sony and a few small other manufacturers that licensed the technology.

By 1980, VHS had 60% of the market in the United States. By 1981, VHS had 75% of the market, and by 1984, they held a 92.5% market share. Because VHS was a more open format that didn't require licensing, it had more support from movie studios. More movies were released in VHS, and some movies simply couldn't be released in Betamax because they were too long.

When video rental stores began to proliferate, they gravitated towards the format that more people had and that more movies were available for. Eventually, new and improved versions of VHS were released. VHS-C was a compact version of VHS released in 1984 that could fit into an adapter that could play on any VHS device. Super VHS was a higher quality version of VHS that was released in 1987. By 1988, Sony began producing their own VHS players.

Despite the video format wars pretty much being over by the early 1980s, Sony never totally gave up on Betamax. In 1985, they introduced Super Betamax, and in 1988, they introduced Extended Definition Betamax. Sony kept producing Betamax video recorders up until 2002, and kept producing Betamax video cassettes until March of 2016. There are some third-party companies that are still making small quantities of Betamax cassettes today.

VHS was the dominant video recording platform up until 2002 when DVD sales finally overtook tape sales. The success of VHS and the failure of Betamax wasn't the case of an inferior technology beating a superior technology. It was the case of one format delivering what they thought people wanted versus another which delivered what people actually wanted. People didn't care about minor differences in image quality on old standard definition television sets.

What they wanted was to record and play longer videos. The fact that Sony tried to control and profit off the entire Betamax ecosystem, whereas JVC made the VHS ecosystem open, also ensured that VHS would end up victorious. The executive producer of Everything Everywhere Daily is Charles Daniel. The associate producers are Austin Oakton and Cameron Kiefer. I want to thank everyone who supports the show over on Patreon. Your support helps make this podcast possible.

I'd also like to thank all the members of the Everything Everywhere community who are active on the Facebook group and the Discord server. If you'd like to join in the discussion, there are links to both in the show notes. And as always, if you leave a review or send me a boostagram, you too can have it read on the show.