Analysis of information sources in references of the Wikipedia article "Betamax" in English language version.
Betamax Betamax is a color-under system.
[04:59]Sony managed to in a kinda-sorta way time-compress the image from the camera so that it was recorded faster than real time.
[06:27] This is often described as time compression because the camcorder is literally recording at a higher clock speed than a normal VCR--about 18.8 kHz compared to 15.7 kHz.
[08:42] because the tape-to-head speed is a little bit slower in the VCR, that 18.8 kHz [recorded signal] automatically [becomes a standard] 15.7 kHz signal [on playback]
[09:08] This video trickery enabled the Betamovie to be remarkably small for its time, while producing recordings that were compatible with your favorite Beta VCR [however it also meant that] Betamovie cannot play back its own recordings
[15:36] the only people who could use a Betamovie were the same people who already had a Betamax VCR. This camera is of literally no use [otherwise]
This is the actual size of the Sony BetaPak, the world's first truly portable VCR
ソニーは2016年3月※をもって、ベータビデオカセットおよびマイクロMVカセットの出荷を終了いたします [..] ※ 需要状況によっては予定時期以前に終了する場合もあります。[Sony will discontinue shipping of beta video cassettes and micro MV cassettes as of March 2016 [..] Depending on the demand situation, it may end before the scheduled time]
ソニーは2016年3月※をもって、ベータビデオカセットおよびマイクロMVカセットの出荷を終了いたします [..] ※ 需要状況によっては予定時期以前に終了する場合もあります。[Sony will discontinue shipping of beta video cassettes and micro MV cassettes as of March 2016 [..] Depending on the demand situation, it may end before the scheduled time]
This is the actual size of the Sony BetaPak, the world's first truly portable VCR
[04:59]Sony managed to in a kinda-sorta way time-compress the image from the camera so that it was recorded faster than real time.
[06:27] This is often described as time compression because the camcorder is literally recording at a higher clock speed than a normal VCR--about 18.8 kHz compared to 15.7 kHz.
[08:42] because the tape-to-head speed is a little bit slower in the VCR, that 18.8 kHz [recorded signal] automatically [becomes a standard] 15.7 kHz signal [on playback]
[09:08] This video trickery enabled the Betamovie to be remarkably small for its time, while producing recordings that were compatible with your favorite Beta VCR [however it also meant that] Betamovie cannot play back its own recordings
[15:36] the only people who could use a Betamovie were the same people who already had a Betamax VCR. This camera is of literally no use [otherwise]
[04:59]Sony managed to in a kinda-sorta way time-compress the image from the camera so that it was recorded faster than real time.
[06:27] This is often described as time compression because the camcorder is literally recording at a higher clock speed than a normal VCR--about 18.8 kHz compared to 15.7 kHz.
[08:42] because the tape-to-head speed is a little bit slower in the VCR, that 18.8 kHz [recorded signal] automatically [becomes a standard] 15.7 kHz signal [on playback]
[09:08] This video trickery enabled the Betamovie to be remarkably small for its time, while producing recordings that were compatible with your favorite Beta VCR [however it also meant that] Betamovie cannot play back its own recordings
[15:36] the only people who could use a Betamovie were the same people who already had a Betamax VCR. This camera is of literally no use [otherwise]
!["[Betapak advertisement]"](https://web.archive.org/web/20210516201010/https://img.newspapers.com/img/thumbnail/493604069/400/400/0_0_4253_7037.jpg?cs=604800){kind=link}