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Digest #9462
Messages
Fri Mar 29, 2013 4:55 am (PDT) . Posted by:
"T Hopkins" todhop
On Mar 28, 2013, at 11:25 PM, OBrien wrote:
> Yes…the data resides on the bottom of the silver/gold film layer on the top of the disc.
True, but maybe clearer to say the data is "closer" to the top (label side) than the bottom (the read side). There is a protective layer on top as well, though it is thinner.
It is easier to "scratch" the "data" from the top than the bottom, but most scratches that cause read issues are scratches in the protective layer on the bottom that do not actually go all the way through to the data layer. They simply cause misreads because the laser can't see through the protective layer properly. Such scratches can actually be polished out because they have not actually damaged the data layer.
It is not only possible to scratch a disc from the top, but such a scratch can be entirely irreparable. If you want to make a disc unreadable, draw a razor knife across the top cutting into the data layer. Easy to do from the top but harder from the bottom.
Cheers,
tod
[Non-text portions of this message have been removed]
> Yes…the data resides on the bottom of the silver/gold film layer on the top of the disc.
True, but maybe clearer to say the data is "closer" to the top (label side) than the bottom (the read side). There is a protective layer on top as well, though it is thinner.
It is easier to "scratch" the "data" from the top than the bottom, but most scratches that cause read issues are scratches in the protective layer on the bottom that do not actually go all the way through to the data layer. They simply cause misreads because the laser can't see through the protective layer properly. Such scratches can actually be polished out because they have not actually damaged the data layer.
It is not only possible to scratch a disc from the top, but such a scratch can be entirely irreparable. If you want to make a disc unreadable, draw a razor knife across the top cutting into the data layer. Easy to do from the top but harder from the bottom.
Cheers,
tod
[Non-text portions of this message have been removed]
Fri Mar 29, 2013 4:57 am (PDT) . Posted by:
"T Hopkins" todhop
On Mar 28, 2013, at 12:45 PM, Earle Jones wrote:
> Rubbing alcohol (ditto ethyl alcohol) is a relatively safe solvent.
Safe for humans, but the devil to varnish, paint, and plastic. Don't drip on your nice wooden desktop or floor.
Cheers,
tod
[Non-text portions of this message have been removed]
> Rubbing alcohol (ditto ethyl alcohol) is a relatively safe solvent.
Safe for humans, but the devil to varnish, paint, and plastic. Don't drip on your nice wooden desktop or floor.
Cheers,
tod
[Non-text portions of this message have been removed]
Fri Mar 29, 2013 5:04 am (PDT) . Posted by:
"T Hopkins" todhop
Stick on labels very bad, especially in the slot loading drives common on Macs.
1) They will, eventually, peel up.
2) When they do, they will ruin your drive.
If you want nice labels, get an inkjet that prints directly on discs and purchase inkjet printable discs. The printer's are general use with a disc tray and can be had for as little as $50. I've always used the Epson's. I like them and the labeling software they come with. Inkjet printable discs are pennies. I recommend Verbatim Datalife Plus, available from Amazon in spindles of 50 for $17.
http://www.amazon.com/gp/product/B00020T4UK/ref=wms_ohs_product?ie=UTF8&psc=1
Personally, I think Lightscribe is a waste of time and money for an ugly lable. Buy a printer or use water-based DVD markers.
Cheers,
tod
On Mar 28, 2013, at 8:31 AM, OBrien wrote:
> On Thu, 28 Mar 2013 11:49:52 +0000, Otto Nikolaus wrote:
> > In practice though, I found this too tedious, and used simple address
> > labels stuck to the disc case. I simply crossed out the old label and wrote
> > a new one each time.
>
> It's been awhile back, but I seem to remember a round stick-on paper label with a hole in the center for applying to the center of the disc. This would be better than a regular label because it would maintain the disc's balance at high revs.
>
>
> . . . . . . . . . . . . . . . . . . . . . .
>
> O'Brien ––– –... .-. .. . -.
>
>
[Non-text portions of this message have been removed]
1) They will, eventually, peel up.
2) When they do, they will ruin your drive.
If you want nice labels, get an inkjet that prints directly on discs and purchase inkjet printable discs. The printer'
http://www.amazon.
Personally, I think Lightscribe is a waste of time and money for an ugly lable. Buy a printer or use water-based DVD markers.
Cheers,
tod
On Mar 28, 2013, at 8:31 AM, OBrien wrote:
> On Thu, 28 Mar 2013 11:49:52 +0000, Otto Nikolaus wrote:
> > In practice though, I found this too tedious, and used simple address
> > labels stuck to the disc case. I simply crossed out the old label and wrote
> > a new one each time.
>
> It's been awhile back, but I seem to remember a round stick-on paper label with a hole in the center for applying to the center of the disc. This would be better than a regular label because it would maintain the disc's balance at high revs.
>
>
> . . . . . . . . . . . . . . . . . . . . . .
>
> O'Brien ––– –... .-. .. . -.
>
>
[Non-text portions of this message have been removed]
Fri Mar 29, 2013 5:08 am (PDT) . Posted by:
"T Hopkins" todhop
On Mar 28, 2013, at 8:41 AM, Denver Dan wrote:
> I bought the new NeoFinder but the programmer has created a serious
> problem with NeoFinder's Find function.
I have seen these complaints in comments. I am sad that this is so. Was a nice program.
Roxio bundles an app called DiskCatalog Maker. I did not love it in earler versions, but it definitely had potential.
http://diskcatalogmaker.com/
Cheers,
tod
[Non-text portions of this message have been removed]
> I bought the new NeoFinder but the programmer has created a serious
> problem with NeoFinder'
I have seen these complaints in comments. I am sad that this is so. Was a nice program.
Roxio bundles an app called DiskCatalog Maker. I did not love it in earler versions, but it definitely had potential.
http://diskcatalogm
Cheers,
tod
[Non-text portions of this message have been removed]
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