Scratch-resisant CD

[dejitaru]

Looking at all my CD's, about half skip regularly on my Sony player.

A thin layer of glass could be adhered to the face for resistance to abrasion, perhaps half as thick as cover glass.
The glass would be flexible and resistant to shock, yet a direct hit to the underside of the disc may shatter it. This would probably not cause a read error, yet is worthy of consideration.

What processes could be used to cut the glass in a cost effective manner?

How logical does this entire project seem?

 

[Evadman]

Scratch proof acrylic would be better and probably cheaper. It all comes down to cost.

 

[CTho9305]

Originally posted by: dejitaru
Looking at all my CD's, about half skip regularly on my Sony player.

A thin layer of glass could be adhered to the face for resistance to abrasion, perhaps half as thick as cover glass.
The glass would be flexible and resistant to shock, yet a direct hit to the underside of the disc may shatter it. This would probably not cause a read error, yet is worthy of consideration.

What processes could be used to cut the glass in a cost effective manner?

How logical does this entire project seem?

high-end discs used to have plastic on both sides so the foil (the important part) wasn't scratchable.

 

[Howard]

Some nice discs still do have a protective layer atop the foil. In fact, I hate CDs that don't have them.

You know, you can use a thinner layer of aluminum oxynitride. If it's thick enough, you can hold the CD to your face to ward off bullets.

 

[dkozloski]

It would make more sense to me that now that you are aware of your problem just treat your CD's with a lot more care.

 

[tart666]

I heard TDK came out with scratch-resistant DVD blanks. They claim the coating is 10-times harder than before.

That sort of thing will migrate to all CD/DVD blanks soon. Or at least it should.

Edit: can't find the link for the life of me, the press-release was about two weeks ago.

 

[NeoPTLD]

I saw a package of clear protector that goes on reading side of CDs. It's like 75cents a piece and I don't think it's very economical. I found it in clearance, so I doubt they sell them anymore.

 

[dejitaru]

I saw a package of clear protector that goes on reading side of CDs. It's like 75cents a piece and I don't think it's very economical. I found it in clearance, so I doubt they sell them anymore.

What was the composition of this stuff?

It would make more sense to me that now that you are aware of your problem just treat your CD's with a lot more care.

But then I wouldn't be able to improve the utilized technology, now would I?
Even when I do take care of my CD's (or think I am), they still are rendered coasters years or months later. Damn analog world.

I heard TDK came out with scratch-resistant DVD blanks. They claim the coating is 10-times harder than before.
That sort of thing will migrate to all CD/DVD blanks soon. Or at least it should.

I'm certainly looking forward to that.
I'm looking for something that would be on all CD-ROM and DVD discs. Something harder than plastic.