…in the image editing tool on Google’s Pixel phones.
Well, a UK cybersecurity researcher called David Buchanan has just published an article about a bug of this sort… In truth, unless you erased the entire tape first, before recording over it, you’d almost always leave some unexpected, and perhaps unwanted, previous content at the end. You’d be cast into the tail-end of an unknown TV show, watching a vacation recording, or viewing some other sort of home video, most (but not all!) of which had been lost when it was recorded over. Typically, however, the VCR would “realign” itself with the leftover data from the previous recording, resynchronise with the old video stream, and the messed-up, unintelligible nonsense on the screen would vanish. The cut-over was never very clean, because the VCR would typically lose track of the video signal when the first recording ended, and play back a mish-mash of slanting lines, partial frames that jumped around on the screen, blurry washes of colour, and a weird, garbled mix of different audio soundtracks. …in which case you’d end up watching the last part of whatever was left over from the time before, and when that ended, what was recorded the time before that, or the time before that, and so on.
Unless, of course, you (or the friend who’d lent you the tape) had used it before, and recorded something longer than 45 minutes… When you watched back, say, a 45-minute show recorded on an E-60 tape, you’d get 15 minutes of video fuzz (commonly known as “static”) if you left the tape running when the show had finished, until the VCR detected the end of the reel and obligingly rewound the cassette for next time. Few TV shows were exactly the length of a tape, so when you recorded a show, you’d usually have at least a bit of tape left at the end of the reel, which would be blank.
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