Dan Maloney
I have stuff stored on 8mm tape and it's still readable
Well, i still disagree about the theory that drives are made specific for MFM and fail at GCR.
@deʃhipu My guess, SSDs.
@deʃhipu Good point, I've had CD-R and DVD-R discs both become unreadable after a few years. Though their are supposedly "archival" burnable discs"
keep your ssds powered
clay tablets last for thousands of years
Just don't drop them.
progress, I suppose
I think the best thing to do is use any kind of media you keep "live" in your computer, and making sure there are two copies e.g., through mirrored disks, online backups, etc. Data that's not live is data that may be dead
I have also found 30 year old commodore disks still working fine...and I was amazed...probably 98/100. I have not had as good a record with home made CD/RW
@Jeff Epler Well said.
@Jeff Epler also verify your backups
by the end of cdr era the media tend to use poor dye layer but if you have cdr's from the 1980's like I do they used a metallic layer and I can still read them perfectly.
But all live data will only be good until SkyNet... 😆
https://hackaday.com/2021/05/20/reading-floppies-with-an-oscilloscope/
Reading Floppies With An Oscilloscope
There's a lot of data on magnetic media that will soon be lost forever, as floppies weren't really made to sit in attics and basements for decades and still work. [Chris Evans] and [Phil Pemberton] needed to read some disks that reportedly contained source code for several BBC Micro games, including Repton 3.
yay!
we're going to bounce now (back to engineering / making / shipping electronics)
Imagine the oscilloscope data we can now read with MCU! There are still floppy-enabled measurement equipment at the company I'm working at.
Thanks everyone! Looking forward to more floppy progress!
on the live broadcast we're going to close out with some visual stuff, so jump over to the video if you can
Looks like a washing machine motor
it doubles as a washing machine
they don't make them like they used to anymore
What is the processor on that board?
on the 8" drive? all Shugart chips :)
we'll be posting all the progress across the socialz and more !
what is the model of the sony floppy you are using
@Will S Merkens I have a Sony MFP520-1
I'm so sad I threw all my old floppies from my parent's house, including many beautifully translucent-neon ones 🥺
Sony MFP920 but we think any sony MFP can do GCR
cool
The commodore floppy had its own 6502 which was clocked faster than the one in the c64 :)
Thanks y'all.
thank you
nice one thanks
woo hoo
See y'all next hack chat!
Thanks Adafruit! Thanks everyone -- transcript coming!
thanks everyone :)
And next week:
https://hackaday.io/event/183578-pick-and-place-hack-chat
Pick and Place Hack Chat
Chris Denney will host the Hack Chat on Wednesday, February 9 at noon Pacific. Time zones got you down? Try our handy time zone converter. We in the hacker trade are pretty used to miracles -- we make them all the time.
Thanks for hosting Dan
more on GCR/MFM floppy analysis http://cowlark.com/fluxengine/doc/driveresponse.html
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