retrocomputing
If you thought IDE hard drives were becoming scarce, just try what I spent the last few hours doing and shop for an ESDI hard drive.
I'm trying to restore a trash-picked (& VG condition) IBM 5160 (the PC XT) that turns out to have been complete except for HDD & keyboard. The rescue included an amber MDA monitor & ESDI controller with cables, though I didn't recognize the controller until today.
Going with an IDE controller & CF or SD adapter is an option, I suppose.
You'd think that a boxed set of disks still in shrinkwrap would be best protected from damage. Nope. this is the underside of a DOS 3.3 boot disk that sat unused & protected in a tyvek sleeve, in a special pocket, in a 3-ring binder, in a box, under shrinkwrap for 31 years. Look at the mylar disc visible through the oval access hole.
But the weird thing is both original disks were fine in my 286's 1.2 MB drive the one time I put them in there, & by coincidence the one command I ran to exercise them both was diskcopy, giving me a full duplicate of both disks, & both copies work just fine in my XT.
It's a good thing neither IBM nor Microsoft put copy protection on their DOS boot/install disks.
It's hard to tell from the label. The icky label is the Startup (boot) disk, & the good label is the Operating disk. The mylar of the Operating disk is just as damaged. It does explain why it wouldn't boot in my XT.