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A tool for burning visible pictures on a compact disc surface (2022)
- curtisszmania 1y ago[dead]
- globular-toast 1y agoIf only this existed 15 years ago when I got rid of my burners.
- pavel_lishin 1y agoI don't even remember if the CD/DVD drive I have in my desktop is a writer or not. I distinctly remember purchasing one about a decade ago, but I think I was looking for an external one. Hell, I'm not even sure if it's plugged in at the moment, I may have unplugged it to plug in another hard drive...
- lhoff 1y agoI had a DVD Burner in my self build PC and discovered a year ago that it wasn’t plugged in and that it must have been like this for years. That was the moment I decided it’s time to remove it.
- sandreas 1y agoI still use my bluray to rip audio CDs... Pretty oldschool but with navidrome and audiobookshelf it is a pretty solid workflow... See https://pilabor.com/blog/2022/10/audio-cd-ripping-hardware/ https://pilabor.com/blog/2022/10/audio-cd-ripping-hardware/
- al_borland 1y agoAfter many years without an optical drive in my home, I bought an external one within the last year or so. It's one of those things that occasionally comes up, and is useful to have around, and I figured the longer I waited the more difficult it would become to find a decent one.
- valianteffort 1y agoOptical media is unmatched for archival purposes. I have photos, videos, and documents I'd be devastated to lose. I simply cannot trust magnetic or solid-state storage over the long term. Luckily blurays are still somewhat cheap in Japan so I stock up when I visit. Stored properly they should outlive me.
- toast0 1y agoIf you care about your data, you need to have a regular process where you check the copies and remake them from time to time. Hopefully some of the copies live on after your death. Optical does well, but I've seen reasonably treated cd-rs degrade, and well treated pressed cds decay. Sometimes some mistake in production takes years to become apparent, but results in a fixed lifetime below the estimates.
- Milpotel 1y agoI have so many CDs/DVDs that cannot be read anymore that I stopped using them for backups.
- HPsquared 1y agoRegular optical media can suffer corrosion of the aluminium reflector layer, and breakdown of the dye. Sure, they do make archival grade discs (e.g. with a gold layer) but they're expensive.
- mystified5016 1y agoIt did! I remember playing with 'Disc T@2' when I was a kid. I had a lightscribe then too, so I put pictures on both sides
- extraduder_ire 1y agoCool idea. Like a more accessible version of lightscribe. (if you use a dual-sided disc) I assume this isn't possible with a DVD/bluray due to the much much smaller pits.
- whycome 1y ago> I assume this isn't possible with a DVD/bluray due to the much much smaller pits. Or, you know, higher resolution images.
- zapp42 1y agoI love the Github username!
- thomassmith65 1y agoI gather it's a reference to the pop singer Adriano Celentano?
- myself248 1y agoOl rait!
- RandomBacon 1y agoParent is referring to an entertaining music video where the Italian singer made a song of nonsense words that sounds like English to non-English speakers: Starts at 1:40 https://youtube.com/watch?v=v5VpczwrSCc https://youtube.com/watch?v=v5VpczwrSCc
- Molitor5901 1y agoI fondly remember LightScribe, that was a pretty awesome technology.
- gambiting 1y agoI was going to say, I still have a 5 pack of Lightscribe DVDs unopened in a box specifically to save something "special" but obviously nothing has ever been special enough to warrant using them. And now that they aren't made anymore it would feel downright sacrilegious to use them, not to mention 4.7GB of capacity is just not enough for anything nowadays really.
- layer8 1y agoSomeone would probably buy them on eBay for a good price.
- ganoushoreilly 1y agoThere are definitely people that collect older media for use in the retro setups. I constantly buy New Old Stock when I find Floppies, Mini Disc, Cassettes, Zip Disks, hell just about anything. We're a weird bunch of collectors but we're out there.
- jajko 1y agoSomebody here is going to be very rich one day, just safeguard them against elements
- gambiting 1y agoLooks like you can still buy 10-packs on eBay for £15, not really collectible yet it seems :-)
- yaky 1y ago4.7GB is quite enough for a standalone Linux DVD (for devices that still have DVD drives). Plus some cool art. Might be a good idea to preserve a known-working distro for some old PC, especially for discontinued or less-used architectures. Just saw a discussion the other day about finding 32-bit Debian for an old laptop.
- axoltl 1y agoIt’s a slightly more involved project, but tmbinc managed to write arbitrary pictures to a DVD surface: https://debugmo.de/2022/05/fjita-the-project-that-wasnt-meant-to-be/ https://debugmo.de/2022/05/fjita-the-project-that-wasnt-mean...
- Cockbrand 1y agoBack in the day, there was a Yamaha burner with a feature called "DiscT@2". It could burn images and text onto the unused area of a CD-ROM. I just had to get it and did so, and I had a bit of fun with it.
- xattt 1y agoIt seemed especially badass when the model number was the CRW-F1, released in 2002. It was also cool because the activity would blink purple (orange + blue) during writing. This set it apart when blue LEDs were all the rage.
- jonah-archive 1y agoI still have mine (in a firewire enclosure)! Last tested the DiscT@2 feature about four years ago, at the time qpxtool had a utility for burning the imagery under Linux.
- m-s-y 1y agoSame. I had one of these in ‘98/‘99. The disc didn’t even go into a standard tray—-you had to use a caddy that completely enveloped the disc.
- 4rt 1y agoany idea what the caddy did? some sort of feedback for rotation angle maybe?
- chaboud 1y agoThe caddies were just a simple loading mechanism, with a spring door like a floppy disc. I suspect they had the life they did because someone was hoping that we would all buy ultra-expensive caddies for our collections instead of moving discs in and out of cases.
- deleted 1y ago[deleted]
- HPsquared 1y agoI suppose these shapes could be made incredibly detailed. There must be some kind of application for that.
- isoprophlex 1y agoIts basically a bespoke diffraction grating printer, indeed. So, you could probably print holographic images?
- _def 1y agoThis github issue mentions a paper about holographic images on a DVD: https://github.com/arduinocelentano/cdimage/issues/14 https://github.com/arduinocelentano/cdimage/issues/14 But I can't actually imagine what it would look like. Sounds amazing though!
- meindnoch 1y agoLightScribe reinvented?
- amelius 1y agoCan it still hold data?
- _def 1y agoI assume no https://github.com/arduinocelentano/cdimage/issues/16 https://github.com/arduinocelentano/cdimage/issues/16
- classichasclass 1y agoBut a multisession disc with this technique should be possible, using a data track and then the rest as "picture audio."
- whycome 1y agoTechnically CDA allowed tracks in the “negative time”. So you could probably burn everything there and then have a short track on the “normal” time for an actual song. Cool CD single?
- ziofill 1y ago+1 for the GitHub user name :)
- grishka 1y agoOh wow, the readme to one of the mentioned projects is in KOI8. It's been decades since I last saw that encoding used.
- londons_explore 1y agoCongrats to the author - a few decades ago I attempted the same, with very little success (using data tracks, not audio, which might have been my mistake). The challenge (as I saw it) was that the drive has the option to toggle the state of the laser every sector, effectively letting it invert all your data if it wants to. To have control of the laser state, you need to be able to do perfect predictions if the drive will toggle or not. Any unpredicted bit leads to the laser state toggling and the image being ruined.
- lucianbr 1y agoAssuming control of the decision to toggle, could that be used to draw something even while burning useful data? Of course you would have very low precision, but still. Maybe an outline or something.
- londons_explore 1y agoYes. You get the option to toggle the laser every 33 bytes, which is a lot of controllable toggles to make cool patterns.
- eahm 1y ago30+ years of computer and I had no idea you could do this. These are the kind of things I get excited about!
- ungawatkt 1y agoI gave this a go about 3 years ago when the hackday project[1] first got published, it turns out choosing the parameters is _very_ disc dependent, since every disc is a little bit different (possibly even between lots of the same type, not published anywhere, and quite sensitive. I got it working for the CD-R's I got, but it took ~50 experiments to get ok parameters (the image was pretty good, but still wobbly in some areas of the disc). That said, the end result is pretty cool, if hard to photograph. [1] https://hackaday.io/project/186303-burning-pictures-on-a-compact-disc-surface https://hackaday.io/project/186303-burning-pictures-on-a-com...
- danjc 1y agoIt would be awesome if you could encode data using this technique
- ashoeafoot 1y agoCan you encode holograms, similar to scratch holograms?