How to design a method which not only detects errors in file data, but enables them to be corrected? A tale of Hamming, Reed, Solomon and CDs.
CD
So many different types, from read-only disk image .dmg files, to sparse bundles and DVD/CD-R masters. Which to use, and how to create them?
First release version, for El Capitan to Catalina. And completely free of course.
Other major changes include detailed reporting, and user control over the size of buffer used, bringing big performance improvements.
How can you tell whether the file you see in storage today is the same as it was a year ago when you last opened it?
Over time, stored data gets gradually corrupted. But over what period – months, years or centuries? And at what rate?
The best response to change is to see how you can exploit it. Let’s get ahead of the field, for once.
If I burn an audio CD to a CD-RW disk, will it play properly?
When burning to CD-R in iTunes, burns may stop short of the end. Is this a problem with iTunes, the media, or drive?
I bought a triple DVD set of a Puccini opera. When inserted into my Mac mini, each disk freezes when I try to play it, and I cannot even eject the DVD until I have forced DVD Player to quit. Could all three disks be defective?
The Eclectic Light Company 