did you know
CD-ROM's (and i'm sure other types of CD's) could be in any shape, not just circles
the only limitation is that you couldn't use all of the surface, only a continuous circle from the center
@mdszy the other limitation is that these will destroy the inside of your optical drive
@mdszy yep, although I'm pretty sure that if it wasn't symmetrical the weight imbalance would destroy the spindle in the CD drive
@mdszy yep, there were some really cool metal (music genre, not material) cd shapes back in the day
@mdszy https://www.discogs.com/SoiSong-xAj3z/master/1499726 a more recent one
@avetozar oh wow, cool!
@mdszy does that not cause rotation instability?
@syntacticsugarglider it almost certainly would, yes
@sirikon yeah it almost certainly would
@mdszy I don't remember which one I had, and all these years when I've described this to people I swore it was a kid's meal of some kind, but Pokemon had a series of CDs: https://bulbapedia.bulbagarden.net/wiki/Pok%C3%A9ROM
@mdszy Maybe obvious, but applies to vinyl records too
@mdszy really? I always assumed this used some magic about making the missing areas as bad sectors or something. But I guess aligning your disk image/rotating it correctly would be super hard, now that I think about it.
@mdszy related idea: I want an app that takes a disk image of a 3.5in floppy, and generates a visualization of all the bits and physical arrangement (% set to 1, or entropy, or something)
Then, slap magnets on floppies, use this to try and visualize magnetic fields. Maybe zero the whole thing before you start.
@mdszy also if you put one of these CDs in a modern high-speed CD drive it will explode
@unascribed i am not surprised lol
but in a 1x CD drive they probably work great
@unascribed future proofing, who needs it?
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