I have Memorex CD-R's that are rated at 700MB, but I find I can sometimes fit a
tad bit more on them - at least 1 or 2 MB, maybe more.

How is this determined? WHAT determines the EXACT size limit in MB? I'm
using Adaptec EZCD to create them as "data" CDs, for mp3 files, if that
matters.

"Bill in Co." <ornery1@earthlink.net> wrote in
news:reGqb.1113$nz.1097@newsread2.news.pas.earthli nk.net:

The answer is 737,280,000 bytes for an 80 min, mode1 CDROM.
http://www.osta.org/technology/cdqa7.htm

--
fred

On Fri, 07 Nov 2003 05:39:35 GMT, "Bill in Co."
<ornery1@earthlink.net> wrote:

The exact limit depends on several factors.

The disc is written from center to outside edge. As long as the writer
finds a continuously usable track of dye, it may continue writing.
Some writers will allow you to write closer to the edge of the disc
than others. That means more tracks and more data storage.
Unfortunately, if the disc manufacturer wasn't expecting you to try
writing that close to the edge, the QA may not be testing the dye
layer that far out. If you are writing beyond where the manufacturer
is QAing the dye layer, then you will run into a higher failure rate
as you more and more often try to write into bad areas. When writing
beyond the QA area, each disc is a unique product, with it's own
limitation. If you restrict yourself to a single brand and product,
you will be able to fairly reliably predict just how far beyond the QA
area you can write dependably, but even the tiniest change in the
manufacturing process may cause you to start turning out a series of
coasters.

regards,
Joe

----------------
It matters not how experienced you are, nor how dedicated to the task. If you're not having fun, you are doing it wrong.

fred-bloggs wrote:
Oh, shoot! I was hoping for 737,280,001.

--
dadiOH
_____________________________

dadiOH's dandies v3.0...
....a help file of info about MP3s, recording from
LP/cassette and tips & tricks on this and that.
Get it at http://www.gbronline.com/xico/
_________________________________

Thanks Fred (and Joe). From that article it appears we can go to, say, 730
MB pretty safely, then (on the 700 MB, 80 min, CD-Rs). Or at least that's my
interpretation (assuming the CD writer will allow it). It was just rounded
down to 700 MB as a nice number.

fred-bloggs wrote:

Bill in Co. wrote:
No, not really. Not 730MB of your data. In the first place, 737,280,000
bytes is 720 MB, not 730. In the second place, there has to be room for the
system stuff too...TOC, whatever.

As cheap as discs are, you are better off staying with 700. Maybe up to 703
MB.

--
dadiOH
_____________________________

dadiOH's dandies v3.0...
....a help file of info about MP3s, recording from
LP/cassette and tips & tricks on this and that.
Get it at http://www.gbronline.com/xico/
_________________________________

As you have discovered, you can get more on the disc than the rated
length. The amount, however, is different from manufacturer to
manufacturer. Download Nero CDspeed. It has a function that tests
the disc for total capacity.

Norm Strong

"Bill in Co." <ornery1@earthlink.net> wrote in message
news:reGqb.1113$nz.1097@newsread2.news.pas.earthli nk.net...

On Fri, 07 Nov 2003 15:51:32 GMT, "Bill in Co."
<ornery1@earthlink.net>was understood to have stated the following:

You people don't count right. :-)

a kilobyte is 1024 bytes, and a megabyte is 1024 kilobytes, so 700
megabytes is 700 * 1024 * 1024 = 734,003,200 bytes. :-)

A megabyte is either 10^6 (1,000,000) or 2^20 (1,048,576) bytes. Hard drive manufacturers use 10^6. Memory and CD capacity is rated in megabytes as 2^20, so a CD will hold about 734,003,200 bytes. You might not fit that much because of lead-in, lead-out, etc. but I have recorded 730,000,000 bytes without problems. You could be able to record more, depending on the limitations of your software, CDR drive, and media.

"Bill in Co." wrote:
--
Mike Walsh
West Palm Beach, Florida, U.S.A.

David W. Poole, Jr. wrote:

Drat! I forgot about that. At least I got the 703MB right, more or less.


--
dadiOH
_____________________________

dadiOH's dandies v3.0...
....a help file of info about MP3s, recording from
LP/cassette and tips & tricks on this and that.
Get it at http://www.gbronline.com/xico/
_________________________________

On Fri, 7 Nov 2003 13:24:52 -0500, "dadiOH" <dadiOH@xmail.com>was
understood to have stated the following:

Hard to calculate all of that stuff with the overhead, anyways. :-)

I once worked with a PC tech who ordered a machine with 256mb of
memory, and when it arrived with 262,144kb of memory, he thought he
had gotten a baker's dozen, so to speak. :-)

What ticks me off is that some hard drive manufacturers use different
standards as for byte counts per megabyte than others.

David W. Poole, Jr. said...

Oh, you mean like the two "120" Gig hard drives I have in this machine
that both show in Windows as 111 Gig?

Yup, nice touch, that.
--
CQ

On Fri, 7 Nov 2003 16:16:07 -0500, CQ <me@privacy.com>was understood
to have stated the following:

Those would be prime examples, although it is hard to tell how much
overhead the OS takes.

I've installed drives that have shown up in explorer "as advertised"
(usually WD or Seagates) and then seen others that are much smaller
(Quantum and Maxtors)...

"Bill in Co." <ornery1@earthlink.net> wrote in message
news:reGqb.1113$nz.1097@newsread2.news.pas.earthli nk.net...
the answer to your question is between 711 and 712mb on a single 700mb disc
when you use overburn.
you can get just over 660mb on a 650mb disc.
cheers
james

"David W. Poole, Jr." <spammersshouldbekilled.50.dwpj65@spamgourmet.com>
wrote in news:1elnqvcqg466tsu4t790qcjd2pk1kj7qi3@4ax.com:

Try a different calculation, YOU might get it right
80 x 2048 x 75 x 60 = 737280000

--
fred

During the partitioning and formatting of a hard drive any bad sectors
discovered are marked as unusable thereby reducing the total size
available
to the operating system. New hard drives may not be 100% usable as per
the MB advertised.

Ray

Suddenly, Bill in Co. sprang forth and uttered these pithy words:
disk, the mechanics and software of the drive, etc.
--
aaronl at consultant dot com
For every expert, there is an equal and
opposite expert. - Arthur C. Clarke

Ray Carson said...

Would be interesting if two brand new hard drives had identical 9 Gig bad
sectors ;-)

No, the difference between what they advertise and what Windows reports
is simply that they advertise drive size in one format, knowing full well
that windows (and most OS's, I would imagine) will "see" them as a
smaller size. Technically, the size they advertise is true so they get
away with it. It is not a very above board marketing technique, is all.

Computer hard drive capacities are usually described in promotional
material in decimal notation, but the computer reads and writes data to
the drives in a binary system. The result is that a hard drive described
as being 20 gigabytes would actually have only 18.6 gigabytes of readable
capacity, (or in my case a 120 gigabyte drive ends up with 111 gigs).
This actually resulted in a lawsuit in California a while back. I'm not
sure how it turned out. I sort of hope it got tossed out of court on
grounds of being a waste of the court's time, but you never know how
those things will go.

--
CQ

CQ wrote:

Only in California, where the litigation and grievance industries rule.
There is one such case,
http://www.wired.com/news/business/0,1367,60505,00.html , filed in Los
Angeles less than 2 months ago. I don't think a verdict has been reached on
the case yet.

(Look for a Viagra defense on this one.)


Don

On Sat, 8 Nov 2003 03:39:20 -0600, "Ray Carson"
<rcarson@cox-internet.com>was understood to have stated the following:

Ok, then the reduced disc space I've observed from Maxtor and Quantum
drives may be the result of crappier quality products, as opposed to a
misinterpretation of what a kilo and megabyte are. :-)

Probably would explain why I've *never* retired a WD or Seagate drive
except for space issues, when the few Maxtors and Quantums I've had
have all died before I was done with them.