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George E. Cawthon
Oh stop it. they don[t rotate at 27,500 rpm. Period!Nicolaas said:The rotational speed (revolutions per minute) is the same in the centre of
the disk as it is at the outside edge.
However, the velocity at the centre of the disk at 27 500rpm (52x speed)
would be 57.6m/s (128mph) approximately, whereas the speed at the outer
edge would be in the order of 171m/s (382mph) - mach 0.501 - just over
half the speed of sound (761mph)!
This Kiwi would definitely NOT like to be around when something travelling
at THAT speed disintegrates!
M
measekite
Absolutely Boring CrapMike said:Arthur Entlich wrote:
Exchanging ideas is fine, but I haven't seem much constructive in this
discusson except for Doc's experienents. He seems to be the only one
actually trying anything. There are things that wild ideas are good for
because they spur imagination and creativity, but this is just plain
science. Pretty boring, actually.
N
Nicolaas Hawkins
Exchanging ideas is fine, but I haven't seem much constructive in this
discusson except for Doc's experienents. He seems to be the only one
actually trying anything. There are things that wild ideas are good for
because they spur imagination and creativity, but this is just plain
science. Pretty boring, actually.
Nobody is holding a gun to your head, Mike, and forcing you to read that
which you find boring. You have a "next" button - learn how to use it!
Posters are in no way beholden to you for approval of what they post.
L
Lorin David Schultz
Mike Rivers said:It might be kind of artistic to print on a non-printable disk, then
spin it up and let the lettering spread out. Each one would be a
little different.
I did that by accident once. I wrote on the disc and popped it into the
drive. I guess the ink hadn't dried, because when the disc came out of
the drive the lettering had extra long "serifs!" It actually looked
pretty cool.
--
"It CAN'T be too loud... some of the red lights aren't even on yet!"
- Lorin David Schultz
in the control room
making even bad news sound good
(Remove spamblock to reply)
R
Richard Crowley
...
Plus shipping unless you buy a whole mess of 'em. If you buy 600 to
get the
"free" shipping, you're paying 2 cents more apiece for CD-R's than I
paid
for 100 DVD's off the shelf less than a mile from my front door.
Remember that you are comparing guaranteed, name-brand
printable discs to "pot-luck", unknown, non-printable discs.
I used to buy discs at CompUSA until I realized what a
horrible deal I was getting, even when the shelf price was
lower.
http://www.digitalfaq.com/dvdguides/buyerguides/buymedia.htm
"Warning! Not suggested!... CompUSA: This store (both online and
brick-n-mortar) has one of the worst return policies on the face of
the planet. Avoid them at all costs, no matter what you plan to buy.
Even if the media is bad, you're stuck with it."
Even the "name brand" discs (Apple, Verbatim, Memorex, Fuji,
Imation etc.) they sell are of unpredictable origin.
http://www.digitalfaq.com/media/dvdmedia.htm
See "Who makes the disc: Brand vs. Media ID"
I've found a reliable source and good prices and I'm not
going back. Good luck to you.
T
The Seabat
If it is an audio cd it will only be going at 1X speed!
R
Richard Crowley
If it is an audio cd it will only be going at 1X speed!
Maybe for playback. Nobody writes them at 1x anymore.
M
Mike Rivers
"The Seabat" wrote ...
Richard said:Maybe for playback. Nobody writes them at 1x anymore.
My TASCAM CD recorder runs at 1X speed. I've found a brand (52X rated)
of blanks that work with it (and yes, they're available with an inkjet
printable surface for about a penny more than the Sharpie-writable
silver surface) and I hope the source will continue to send me the same
thing for a while yet.
I don't do a business in deliverable CDs so I'm not really concerned
with nice printing. It takes far less time to just write on the disk.
Z
zakezuke
I don't do a business in deliverable CDs so I'm not really concerned
For me it isn't so much the deliverable CDs... and in fact with just
CDs I could probally get away with a fine tipped sharpy. But DVD...
forget it! I can't write at 5pt text. with a sharpy I can barely do
14 point.
While in many cases a sharpy is faster... for anything above and beyond
3 lines of text.... I gotta say disc printing is a tad faster and
almost always legible.
with nice printing. It takes far less time to just write on the disk.
For me it isn't so much the deliverable CDs... and in fact with just
CDs I could probally get away with a fine tipped sharpy. But DVD...
forget it! I can't write at 5pt text. with a sharpy I can barely do
14 point.
While in many cases a sharpy is faster... for anything above and beyond
3 lines of text.... I gotta say disc printing is a tad faster and
almost always legible.
A
Arthur Entlich
This thread should probably not be crossposted to rec.audio.pro. That
may be the problem. I'll no longer (after this posting) crosspost to
that group, since it is OT to it.
Art
Mike Rivers wrote:
may be the problem. I'll no longer (after this posting) crosspost to
that group, since it is OT to it.
Art
Mike Rivers wrote:
A
Arthur Entlich
Are you speaking of DVDs or CDs. The CDs have the dye and metallic
surface on the label side with only a couple of layers of lacquer
between them.
On DVDs I am not sure if they are actually using two different plastics
on the sandwich. It would seem that would be possibly more costly than
just using Polycarb. on both sides.
Art
surface on the label side with only a couple of layers of lacquer
between them.
On DVDs I am not sure if they are actually using two different plastics
on the sandwich. It would seem that would be possibly more costly than
just using Polycarb. on both sides.
Art
A
Arthur Entlich
Some of the best scientific investigation and invention has come from
wild ideas. Like the earth rotating around the sun... who would have
thunk! A few heads rolled (or nearly so) over that one ;-)
I only post this to rec.audio.pro because I don't know which forum you
are reading from...
Art
wild ideas. Like the earth rotating around the sun... who would have
thunk! A few heads rolled (or nearly so) over that one ;-)
I only post this to rec.audio.pro because I don't know which forum you
are reading from...
Art
M
Mike Rivers
zakezuke said:For me it isn't so much the deliverable CDs... and in fact with just
CDs I could probally get away with a fine tipped sharpy. But DVD...
forget it! I can't write at 5pt text. with a sharpy I can barely do
14 point.
What's different about a DVD? That's a real question, as I don't haven
anything around here that writes DVDs. I do have a couple of DVD
blanks, however, and they seem to have jsut as much writeable surface
as CDs, unless you're using the double-sided ones. Then I could see
that you have a problem.
Or is it that you're putting 80 files on a DVD where you might only put
half a dozen on a CD, and you want to write all the file names on the
disk?
For "archive" disks, I've been using the DVD two-disk cases for
storage. They have enough room to slip a slightly cut down 8-1/2 x 11"
sheet of paper into them so I can write a fair amount of information on
there. In fact, I often print that from the computer, leaving me with a
Word file that I can reproduce (if I can find it again) as well as a
neatly printed page. That way, all I need to write on the CD is enough
information to get it together with its case.
You think it's a problem to write on DVDs? How about flash memory
cards? I think that might be the only media that, with exception of
those wallet-like things designed to go into your camera bag, has no
commercially available storage system.
T
The Seabat
So ya burn the disc and then apply the label!
A
ato_zee
Oh stop it. they don[t rotate at 27,500 rpm. Period!
I tried drying it in the drive to even out the coating, but
now the tray is stuck, think the spray has got on the
slide. Any ideas how to fix it?
Z
zakezuke
What's different about a DVD? That's a real question, as I don't haven
Oh, I should have been more clear. DVD single layer stores 4.7gigs or
roughly 6 times the amount of a CD. Assuming the filesize is the same
and you want to have an index of files on the disc it self... you gotta
write smaller. This is mostly an issue when storing pictures, or when
you covert your music over to .mp3 for playing on your DVD player.
I'm using 4cd jewels my self, not the quads but the 4 in a single jewel
case. Those have no room for paper inside so I use a sticky label on
the outside. To me it's more practical to have the file list on the
disc... as well as a total list on the outside. This way I can often
get away with 5pt outside and 8pt inside. Also cases can be seperated
from the disc... so I don't depend on the case to be an index, attached
to the disc there is no chance in hell I can lose it.
anything around here that writes DVDs
Oh, I should have been more clear. DVD single layer stores 4.7gigs or
roughly 6 times the amount of a CD. Assuming the filesize is the same
and you want to have an index of files on the disc it self... you gotta
write smaller. This is mostly an issue when storing pictures, or when
you covert your music over to .mp3 for playing on your DVD player.
For "archive" disks, I've been using the DVD two-disk cases for
storage. They have enough room to slip a slightly cut down 8-1/2 x 11"
I'm using 4cd jewels my self, not the quads but the 4 in a single jewel
case. Those have no room for paper inside so I use a sticky label on
the outside. To me it's more practical to have the file list on the
disc... as well as a total list on the outside. This way I can often
get away with 5pt outside and 8pt inside. Also cases can be seperated
from the disc... so I don't depend on the case to be an index, attached
to the disc there is no chance in hell I can lose it.
T
Tony
Oh stop it. they don[t rotate at 27,500 rpm. Period!
I tried drying it in the drive to even out the coating, but
now the tray is stuck, think the spray has got on the
slide. Any ideas how to fix it?
Yup, easy.
Just spray large quantities of the strongest solvent you have into the drive
(Acetone would do a wonderful job, it will clean everything it touches
probably), preferably while it is spinning ;-)
You could then spray the inside of the PC to get rid of the melted plastics.
Then buy a new PC.
Seasons greetings.
Tony
C
Carey Carlan
If it is an audio cd it will only be going at 1X speed!
Most stationery players and all portables now buffer the signal. That
implies at least a 2X read speed.
R
Rob
Oh stop it. they don[t rotate at 27,500 rpm. Period!
I tried drying it in the drive to even out the coating, but
now the tray is stuck, think the spray has got on the
slide. Any ideas how to fix it?
LOL