CheshireCat wrote in post #18421249
Uhm... keep in mind that most users cannot distinguish an MP3 file from the uncompressed original. The very few humans who can, do enjoy uncompressed files stored on flash memory.
Flash memory killed the CD, it wasn't the MP3.
It is NOT that very few humans hear MP3 vs. CD quality, it is that modern young listeners cannot distinguish 3" speaker Bluetooth speakers from 10" speaker quality!
Standard audio CD sample rate is 44.1kHz, which gives a frequency response up to 20kHz, and CDs allows for a theoretical signal-to-noise ratio of 93dB. CD translates to the equivalent of 1411.2k bps
MP3, on the other hand, is a 'lossy format' and lossy formats always exhibit some quality loss, because the audio content exiting the decoder on playback is not the same as the audio content that originally went in to the encoder. Depending upon MP3 signal source, MP3 is presented at 64-256k bps. The initial goal of MP3 was to produce 'acceptable' results when coding at 128kbps. That's a data reduction of over 90 percent, removing high-frequency content above about 16kHz. The MP3 format has a reputation for making bass and low-frequency content sound weak, and also exhibits the 'swirlies' in which the hi-hat and cymbals exhibit moderate grainy swirling.
... and the fact that Betamax required two tapes to record a movie
Some marketing genius probably thought that this way they would have sold twice the tapes and possibly limited video piracy.
Unsurprisingly, VHS won the war.
Huh? Betamax had long mode recording options, just like VHS! The L-750 tape could record 90 or 180 or 270 minutes depending upon recording speed, just like T-90 recorded 90 or 180 or 270 minutes.
VHS 'won the war' largely because JVC made the format relatively less expensive than Sony for licensing production of equipment and media.
No 'marketing genius', but merely technical limitations caused by selection of tape cassette size and recording speeds. Originally, Beta I machines (NTSC) were able to record one hour of programming at their standard tape speed of 1.5ips; the first VHS machines could record for two hours, due to both 1.31 ips.) and significantly longer tape. Sony had to slow the tape down to 0.787 ips (Beta II) in order to achieve two hours of recording in the same (smaller than VHS) cassette size, but this reduced Betamax's once-superior video quality to worse than VHS when comparing two-hour recording.