General > General Technical Chat
QR code storage in 60fps one hour video
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Halcyon:

--- Quote from: TheDane on September 17, 2022, 02:06:35 pm ---
--- Quote from: tooki on September 16, 2022, 09:49:46 pm ---Data on audiocassettes was a thing. On videotape? Not with those computers: they had no way to read in anything from videotape. (There were devices to back up PCs to videotape, but those came later.) I mean, you could use a VCR as a glorified audio recorder, but why??

--- End quote ---

Why use a VCR as an audio recorder - because of non-stop +8 hours of stereo recording/playback.

I still have one of these, and yes - the screen looks a bit like QR code :ø)
https://www.vice.com/en/article/j558k3/how-to-save-files-from-a-pc-to-a-vhs-tape

--- End quote ---

I have one of these in a box somewhere. Never used it. Maybe I should crack it out.
NiHaoMike:
One "just for fun" project I wanted to do is to build a gadget that can record and play back 1080p video on a VHS tape. Easiest would likely be a Raspberry Pi combined with a FPGA or fast microcontroller to handle the data encoding/decoding.
tom66:

--- Quote from: NiHaoMike on September 19, 2022, 02:23:58 am ---One "just for fun" project I wanted to do is to build a gadget that can record and play back 1080p video on a VHS tape. Easiest would likely be a Raspberry Pi combined with a FPGA or fast microcontroller to handle the data encoding/decoding.

--- End quote ---

JVC beat you to it about 20 years ago: https://en.wikipedia.org/wiki/D-VHS

These tapes can store 1080i60 video using MPEG compression.  Though the tape is broadly the same as VHS, there's some unmentioned improvements to tape quality which apparently allow this.
NiHaoMike:

--- Quote from: tom66 on September 19, 2022, 08:32:26 am ---JVC beat you to it about 20 years ago: https://en.wikipedia.org/wiki/D-VHS

These tapes can store 1080i60 video using MPEG compression.  Though the tape is broadly the same as VHS, there's some unmentioned improvements to tape quality which apparently allow this.

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I was thinking of one that can use standard VHS tape and ideally an unmodified VCR.
tooki:
If JVC (the inventor of VHS) couldn’t make it work on standard VHS tape, it’s kinda unlikely someone could do it in their spare time. (Granted, maybe with the very latest video codecs, the bitrate miiiight be low enough to make it work…)
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