🚀 go-pugleaf

In article <59f75211-ec65-4555-8625-97cadf4dc320
@k2g2000pro.googlegroups.com>, kalambong@gmail.com says...
> Dear Gurus,
> 
> I understand that there are some CD-burning softwares which have built-
> in verifying routines to verify the burned disc with the ISO image
> file.
> 
> However, I am looking for a stand-alone utility that can do the same
> thing.
> 
> Which is, taking an ISO-image file on the hard disk, and verify it
> with a CD (or DVD) that is inside a CD/DVD drive.
> 
> Is there such a utility available?
> 
> All suggestions are most welcome !
> 
> Thank you for reading.
> 
I'm not into installing software that can be done with resident commands 
within the OS. There's been a DOS command around for a very long time 
called File Compare. If you want to learn about it, I'm sure there are 
multitudes of web pages "out there", to visit. If you go to a DOS 
prompt, you can type "FC /?", without the quotation marks, and it'll 
give you a list of commands and switches, i.e..., /A 
You can navigate to where the .iso image is and
type "fc /b ????.iso X:\????.iso" where X = disc drive with iso image on 
it. I'm sure there are programs out there that will do it graphically, 
but again, I don't like alot of superfluous software on my computer. 
Perhaps a portable version might be available. Good luck.

Al

On Feb 17, 4:39 pm, AlleyCat <a...@aohell.com> wrote:
> In article <59f75211-ec65-4555-8625-97cadf4dc320
> @k2g2000pro.googlegroups.com>, kalamb...@gmail.com says...
>
> > Dear Gurus,
>
> > I understand that there are some CD-burning softwares which have built-
> > in verifying routines to verify the burned disc with the ISO image
> > file.
>
> > However, I am looking for a stand-alone utility that can do the same
> > thing.
>
> > Which is, taking an ISO-image file on the hard disk, and verify it
> > with a CD (or DVD) that is inside a CD/DVD drive.
>
> > Is there such a utility available?
>
> > All suggestions are most welcome !
>
> > Thank you for reading.
>
> I'm not into installing software that can be done with resident commands
> within the OS. There's been a DOS command around for a very long time
> called File Compare. If you want to learn about it, I'm sure there are
> multitudes of web pages "out there", to visit. If you go to a DOS
> prompt, you can type "FC /?", without the quotation marks, and it'll
> give you a list of commands and switches, i.e..., /A
> You can navigate to where the .iso image is and
> type "fc /b ????.iso X:\????.iso" where X = disc drive with iso image on
> it. I'm sure there are programs out there that will do it graphically,
> but again, I don't like alot of superfluous software on my computer.
> Perhaps a portable version might be available. Good luck.
>
> Al

I thank you for the reply.

I do know about the "FC" command and do use it frequently.

However, FC is only used for comparing FILE to FILE.

What I am looking for is a utility that can compare an ISO image file
(xyz.ISO) to a burned CD/DVD based on the same ISO image file.

Penang formulated on Thursday :
> Dear Gurus,
>
> I understand that there are some CD-burning softwares which have built-
> in verifying routines to verify the burned disc with the ISO image
> file.
>
> However, I am looking for a stand-alone utility that can do the same
> thing.
>
> Which is, taking an ISO-image file on the hard disk, and verify it
> with a CD (or DVD) that is inside a CD/DVD drive.
>
> Is there such a utility available?
>
> All suggestions are most welcome !
>
> Thank you for reading.

Maybe one of these will do what you want.

CDCheck
http://www.softpedia.com/get/CD-DVD-Tools/CD-DVD-Rip-Other-Tools/CDCheck.shtml
http://www.softpedia.com/progScreenshots/CDCheck-Screenshot-5638.html
http://www.kvipu.com/CDCheck/
http://www.elpros.si/CDCheck/
http://www.kehuelga.org/video/dvd/app/CDCheck.zip
CDCheck ONLINE
http://www.elpros.si/CDCheck/
Limitations:
� 30 days trial
� Unregistered program continues to function after 30 days but a nag 
screen is displayed at startup.

CDmage
http://www.softpedia.com/get/CD-DVD-Tools/CD-DVD-Images-Utils/CD-Mage.shtml
http://www.softpedia.com/progScreenshots/CD-Mage-Screenshot-1333.html
http://cdmage.orcon.net.nz/frames.html

ImgBurn
http://www.softpedia.com/get/CD-DVD-Tools/Data-CD-DVD-Burning/ImgBurn.shtml
http://www.softpedia.com/progScreenshots/ImgBurn-Screenshot-27810.html
http://en.wikipedia.org/wiki/ImgBurn
http://www.imgburn.com/
Forum
http://forum.imgburn.com/index.php?
Guides
http://forum.imgburn.com/index.php?s=3fc61bdbd91b3eb07b21e560172f4a05&showforum=4
Adding files to an ISO
http://forum.imgburn.com/index.php?s=f9bf65252d3d24f13010c332eb18abe9&showtopic=1779
How to burn an Audio CD from music files using ImgBurn, Supported files 
include Ape, Flac, Ogg, MP3, Wav and Wma
http://forum.imgburn.com/index.php?showtopic=5555
FAQ
http://forum.imgburn.com/index.php?showtopic=59
* Verify - Check a disc is 100% readable. Optionally, you can also have 
ImgBurn compare it against a given image file to ensure the actual data 
is correct

> However, I am looking for a stand-alone utility that can do the same
> thing.
> Which is, taking an ISO-image file on the hard disk, and verify it
> with a CD (or DVD) that is inside a CD/DVD drive.

If the source is an ISO image (or other image formats), you could use 
ImgBurn to burn+verify.

If the source is a set of folders+files, I am using TreeComp.

-- 
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  / v \  Simplicity is Beauty! May the Force and Farce be with you!
/( _ )\ (x86_64 Ubuntu 9.10)  Linux 2.6.32.8
   ^ ^   16:55:01 up 1 day 56 min 2 users load average: 0.03 0.06 0.02
不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa

On Feb 17, 11:22 pm, Penang <kalamb...@gmail.com> wrote:
> Dear Gurus,
>
> I understand that there are some CD-burning softwares which have built-
> in verifying routines to verify the burned disc with the ISO image
> file.
>
> However, I am looking for a stand-alone utility that can do the same
> thing.
>
> Which is, taking an ISO-image file on the hard disk, and verify it
> with a CD (or DVD) that is inside a CD/DVD drive.
>
> Is there such a utility available?
>
> All suggestions are most welcome !
>
> Thank you for reading.

What does "verify" mean to you?

Do you think the ISO or the CD are somehow going to change over time
or do you want  to just verify after burning the ISO to the CD that
they really are the same things?

What ISO burning software are you using now and have you no confidence
in it?

ImgBurn if free and easy:

http://www.imgburn.com/

It will burn your ISO, verify it when it is done and then you can use
it again minutes, hours, days, weeks, months, later just to verify the
ISO and CD still match using the built in Verify function.

If you suspect that and feel a need to verify some ISO and a burned
CD, you may have some other problem. You might want to look at some
other burning software that has all this stuff built in.

Penang wrote:
> Dear Gurus,
> 
> I understand that there are some CD-burning softwares which have built-
> in verifying routines to verify the burned disc with the ISO image
> file.
> 
> However, I am looking for a stand-alone utility that can do the same
> thing.
> 
> Which is, taking an ISO-image file on the hard disk, and verify it
> with a CD (or DVD) that is inside a CD/DVD drive.
> 
> Is there such a utility available?
> 
> All suggestions are most welcome !
> 
> Thank you for reading.

It would seem if you did not verify as soon as you made the copy the 
hard disk content would have changed - evn just a little.
I do not understand the purpose.

On Feb 18, 7:32 am, LouB <L...@invalid.invalid> wrote:
> Penang wrote:
> > Dear Gurus,
>
> > I understand that there are some CD-burning softwares which have built-
> > in verifying routines to verify the burned disc with the ISO image
> > file.
>
> > However, I am looking for a stand-alone utility that can do the same
> > thing.
>
> > Which is, taking an ISO-image file on the hard disk, and verify it
> > with a CD (or DVD) that is inside a CD/DVD drive.
>
> > Is there such a utility available?
>
> > All suggestions are most welcome !
>
> > Thank you for reading.
>
> It would seem if you did not verify as soon as you made the copy the
> hard disk content would have changed - evn just a little.
> I do not understand the purpose.

Me either.

The question seemed to be how to verify an ISO with a burned image
(I'm guessing that means CD).

That question has been answered.

Perhaps a new question is needed.

LouB <Lou@invalid.invalid> wrote in news:4B7D3364.4010203@invalid.invalid:

> Penang wrote:
>> Dear Gurus,
>> 
>> I understand that there are some CD-burning softwares which have built-
>> in verifying routines to verify the burned disc with the ISO image
>> file.
>> 
>> However, I am looking for a stand-alone utility that can do the same
>> thing.
>> 
>> Which is, taking an ISO-image file on the hard disk, and verify it
>> with a CD (or DVD) that is inside a CD/DVD drive.
>> 
>> Is there such a utility available?
>> 
>> All suggestions are most welcome !
>> 
>> Thank you for reading.
> 
> It would seem if you did not verify as soon as you made the copy the 
> hard disk content would have changed - evn just a little.
> I do not understand the purpose.

The content of the rest of he hard drive is irrelevant. What's important 
here is two things: the unexpanded content of the ISO file and whether or 
not the CDROM has physical error and/or damage to it's recording surface. 
Nothing else other than the age of the plastic would change it otherwise.

-- 
(setq (chuck nil)  car(chuck) )

On Wed, 17 Feb 2010 23:04:41 -0800 (PST), Penang wrote:

> On Feb 17, 4:39�pm, AlleyCat <a...@aohell.com> wrote:
>> In article <59f75211-ec65-4555-8625-97cadf4dc320
>> @k2g2000pro.googlegroups.com>, kalamb...@gmail.com says...
>>
>>> Dear Gurus,
>>
>>> I understand that there are some CD-burning softwares which have built-
>>> in verifying routines to verify the burned disc with the ISO image
>>> file.
>>
>>> However, I am looking for a stand-alone utility that can do the same
>>> thing.
>>
>>> Which is, taking an ISO-image file on the hard disk, and verify it
>>> with a CD (or DVD) that is inside a CD/DVD drive.
>>
>>> Is there such a utility available?
>>
>>> All suggestions are most welcome !
>>
>>> Thank you for reading.
>>
>> I'm not into installing software that can be done with resident commands
>> within the OS. There's been a DOS command around for a very long time
>> called File Compare. If you want to learn about it, I'm sure there are
>> multitudes of web pages "out there", to visit. If you go to a DOS
>> prompt, you can type "FC /?", without the quotation marks, and it'll
>> give you a list of commands and switches, i.e..., /A
>> You can navigate to where the .iso image is and
>> type "fc /b ????.iso X:\????.iso" where X = disc drive with iso image on
>> it. I'm sure there are programs out there that will do it graphically,
>> but again, I don't like alot of superfluous software on my computer.
>> Perhaps a portable version might be available. Good luck.
>>
>> Al
> 
> I thank you for the reply.
> 
> I do know about the "FC" command and do use it frequently.
> 
> However, FC is only used for comparing FILE to FILE.
> 
> What I am looking for is a utility that can compare an ISO image file
> (xyz.ISO) to a burned CD/DVD based on the same ISO image file.

I hate DOS!

On 2010-02-18, Penang <kalambong@gmail.com> wrote:
> I do know about the "FC" command and do use it frequently.
>
> However, FC is only used for comparing FILE to FILE.

Irrelevant.

> What I am looking for is a utility that can compare an ISO image file
> (xyz.ISO) to a burned CD/DVD based on the same ISO image file.

"A burned CD/DVD" *is* a file.  At least on reasonable OSes.  E.g.,
did you try \\.\M: ?  If Windows does not support this, one can just
make an ISO image from the disk, and use FC (or diff).

Hope this helps,
Ilya

P.S.  In my experience, byte-per-byte comparison is not relevant.  At
      least, I never saw a disk which could be read byte-per-byte, but
      the result would differ from what it is supposed to be.  Disks
      with some unreadable sectors - a plenty (a hundred?); but if
      fully readable, then correct.

On Feb 18, 12:36 am, Jose <jose_e...@yahoo.com> wrote:
> On Feb 18, 7:32 am, LouB <L...@invalid.invalid> wrote:
>
>
>
> > Penang wrote:
> > > Dear Gurus,
>
> > > I understand that there are some CD-burning softwares which have built-
> > > in verifying routines to verify the burned disc with the ISO image
> > > file.
>
> > > However, I am looking for a stand-alone utility that can do the same
> > > thing.
>
> > > Which is, taking an ISO-image file on the hard disk, and verify it
> > > with a CD (or DVD) that is inside a CD/DVD drive.
>
> > > Is there such a utility available?
>
> > > All suggestions are most welcome !
>
> > > Thank you for reading.
>
> > It would seem if you did not verify as soon as you made the copy the
> > hard disk content would have changed - evn just a little.
> > I do not understand the purpose.
>
> Me either.
>
> The question seemed to be how to verify an ISO with a burned image
> (I'm guessing that means CD).
>
> That question has been answered.
>
> Perhaps a new question is needed.

My apology to all since my original message is too vague.

Here is what happening.

My PC runs Windows XP, and I have ISO Recorder Power Toy installed
( from http://isorecorder.alexfeinman.com/isorecorder.htm )

It is a very nifty stuff. It uses XP's own utilities to burn ISO
images (ISO files) to CD/DVD.

All I need to do, if I ever want to burn a CD or DVD is to right click
on the ISO image file. The first item on the right-click menu is "Copy
Image to CD" and when I choose that, and choose the CD/DVD burner, the
utility will automatically burn the CD / DVD for me.

Which means, the is no "verify" (or file compare).

In NERO or ImgBurn and many other CD burning programs they have the
"verify" step to make sure that the CD/DVD burned is the same as the
ISO image.

And what I am looking for is a stand alone utility to do just that ---
Read in an ISO-Image file, and then compare it to the (CD/DVD) disc
that is on a CD/DVD drive, directory by directory, file by file, byte
by byte.

Again, please accept my sincerest apology for the vagueness of my
original message !

Penang <kalambong@gmail.com> wrote in
news:a054afca-65ad-4918-a768-e92384d46529@z1g2000prc.googlegro
ups.com: 

<SNIP>

> In NERO or ImgBurn and many other CD burning programs they
> have the "verify" step to make sure that the CD/DVD burned
> is the same as the ISO image.
> 
> And what I am looking for is a stand alone utility to do
> just that --- Read in an ISO-Image file, and then compare
> it to the (CD/DVD) disc that is on a CD/DVD drive,
> directory by directory, file by file, byte by byte.
> 
> Again, please accept my sincerest apology for the vagueness
> of my original message !

I basically understood what you want/ed to do and I do not know 
of any such utility.

You were given /so many links/, especially by "johnw" and you 
seem not to have bothered to check any of the links out. I wrote 
you a post earlier today before this latest "clarification" but 
did not bother posting it since all I said had already been 
said.

While it is nice of you to "clarify" for the great unwashed, it 
would have been nice of you to THANK all the people (not just 
ONE) who gave you so much info. It doesn't happen with a snap of 
the fingers, you know - YOU were too lazy to just Google for the 
answer to begin with, weren't you? No one here is God, you know. 
We can't tell you of something that does not exist, while Google 
knows everything.

Still, if you get a utility like WinImage (there are several), 
you can open any ISO file and write it to your HD and then 
compare the contents with what went into the ISO file in the 
FIRST place. I am not aware of ANY utility which can magically 
overcome the fact that AFAIK every ISO file burned from the same 
material by different programs will be slightly different, have 
a completely different checksum, and can not be "compared" bit 
by bit except to a copy of itself with a good file manager or a 
file compare program.

Of course, the easiest, and free, solution would be to use 
imgburn - or to plonk down 40 bucks and get CDRWin from 
goldenhawk (which is what I have been using for years, started 
before imgburn - which is /supposed/ to be even better - came 
out) but if you don't want to do that and insist on using a 
plug-in instead of a real program, that's your problem.

Just out of curiosity, does this miraculous plug-in allow you to 
set the burning speed? Or do you just burn everything at MAX 
like so many other modern "computer users"?

No offense, it's just a little tiresome to see SO many good 
replies and then get a re-post which implies you haven't looked 
at ANY of the links and appear to refuse to accept any of the 
info given.

BTW, ANY program the author of which proudly says "It is 
recommended by MSDN download site along with Easy CD and Nero 
and is used by a number of companies around the world." is 
(IMHO) to be avoided like the plague.

SOME recommendation... MS made BOB, WinME and Vista, remember? 
But they STILL won't let you print the contents of a directory 
in ANY version of Windows without using the command line or a 
3rd party program... The ONLY thing they know how to do is spy 
on their customers and make lots and lots of money...

AFA Roxio and Nero, they make incomprehensible illogical pig 
bloat. Adaptec may have been the first - I remember burning a 
Quantegy/Ampex CDR with Adaptec software at 1x on an external HP 
burner which cost more than a good computer costs today, and 
Roxio is "related" to it, but I know of *few* programs that did 
not change for the worse (if not simply became complete trash) 
when the kinds of changes that Adaptec made in its company 
structure were made. (Let alone when someone just buys someone 
else out, a favorite MS/Adobe tactic of destroying quality 
competition.)

AFA Nero, I find it simply insane. Anyone who uses either it or 
Roxio is not anyone I would trust to recommend a ball-point pen, 
let alone ANY software.



-- 
The Onion:     Is there a God? 
Winona Ryder:  Is there a God? 
The Onion:     Yes, does God exist? 
Winona Ryder:  Um, I don't know. I really don't know. I hate to 
be so boring, but I don't know.

On Feb 19, 1:25 am, thanatoid <wait...@the.exit.invalid> wrote:
> Penang <kalamb...@gmail.com> wrote innews:a054afca-65ad-4918-a768-e92384d46529@z1g2000prc.googlegro
> ups.com:
>
> <SNIP>
>
> > In NERO or ImgBurn and many other CD burning programs they
> > have the "verify" step to make sure that the CD/DVD burned
> > is the same as the ISO image.
>
> > And what I am looking for is a stand alone utility to do
> > just that --- Read in an ISO-Image file, and then compare
> > it to the (CD/DVD) disc that is on a CD/DVD drive,
> > directory by directory, file by file, byte by byte.
>
> > Again, please accept my sincerest apology for the vagueness
> > of my original message !
>
> I basically understood what you want/ed to do and I do not know
> of any such utility.
>
> You were given /so many links/, especially by "johnw" and you
> seem not to have bothered to check any of the links out. I wrote
> you a post earlier today before this latest "clarification" but
> did not bother posting it since all I said had already been
> said.
>
> While it is nice of you to "clarify" for the great unwashed, it
> would have been nice of you to THANK all the people (not just
> ONE) who gave you so much info. It doesn't happen with a snap of
> the fingers, you know - YOU were too lazy to just Google for the
> answer to begin with, weren't you? No one here is God, you know.
> We can't tell you of something that does not exist, while Google
> knows everything.
>
> Still, if you get a utility like WinImage (there are several),
> you can open any ISO file and write it to your HD and then
> compare the contents with what went into the ISO file in the
> FIRST place. I am not aware of ANY utility which can magically
> overcome the fact that AFAIK every ISO file burned from the same
> material by different programs will be slightly different, have
> a completely different checksum, and can not be "compared" bit
> by bit except to a copy of itself with a good file manager or a
> file compare program.
>
> Of course, the easiest, and free, solution would be to use
> imgburn - or to plonk down 40 bucks and get CDRWin from
> goldenhawk (which is what I have been using for years, started
> before imgburn - which is /supposed/ to be even better - came
> out) but if you don't want to do that and insist on using a
> plug-in instead of a real program, that's your problem.
>
> Just out of curiosity, does this miraculous plug-in allow you to
> set the burning speed? Or do you just burn everything at MAX
> like so many other modern "computer users"?
>
> No offense, it's just a little tiresome to see SO many good
> replies and then get a re-post which implies you haven't looked
> at ANY of the links and appear to refuse to accept any of the
> info given.
>
> BTW, ANY program the author of which proudly says "It is
> recommended by MSDN download site along with Easy CD and Nero
> and is used by a number of companies around the world." is
> (IMHO) to be avoided like the plague.
>
> SOME recommendation... MS made BOB, WinME and Vista, remember?
> But they STILL won't let you print the contents of a directory
> in ANY version of Windows without using the command line or a
> 3rd party program... The ONLY thing they know how to do is spy
> on their customers and make lots and lots of money...
>
> AFA Roxio and Nero, they make incomprehensible illogical pig
> bloat. Adaptec may have been the first - I remember burning a
> Quantegy/Ampex CDR with Adaptec software at 1x on an external HP
> burner which cost more than a good computer costs today, and
> Roxio is "related" to it, but I know of *few* programs that did
> not change for the worse (if not simply became complete trash)
> when the kinds of changes that Adaptec made in its company
> structure were made. (Let alone when someone just buys someone
> else out, a favorite MS/Adobe tactic of destroying quality
> competition.)
>
> AFA Nero, I find it simply insane. Anyone who uses either it or
> Roxio is not anyone I would trust to recommend a ball-point pen,
> let alone ANY software.
>
> --
> The Onion:     Is there a God?
> Winona Ryder:  Is there a God?
> The Onion:     Yes, does God exist?
> Winona Ryder:  Um, I don't know. I really don't know. I hate to
> be so boring, but I don't know.

What's your favorite CD burner software?
After griping about various others, shouldn't you say?

On Thu, 18 Feb 2010 18:56:27 +0000 (UTC), Ilya Zakharevich
<nospam-abuse@ilyaz.org> wrote in part:

> > What I am looking for is a utility that can compare an ISO image file
> > (xyz.ISO) to a burned CD/DVD based on the same ISO image file.
> 
> "A burned CD/DVD" *is* a file.  At least on reasonable OSes.  E.g.,
> did you try \\.\M: ?  If Windows does not support this, one can just
> make an ISO image from the disk, and use FC (or diff).
Sonic Record Now and some other programs that I have used include some
identifying information in the .ISO file.  Perhaps another format
would give the same result every time I made an image, but can't
switch from .ISO.  In particular, making an ISO file from the same
real or virtual CD gives different results each time, so a simple
compare doesn't do the job. (The differences may be as little as
the equivalent of:
"This ISO image was made at ...."
but the file compare programs that I use stop on the first
difference for binary files.  If there is only a single difference
in the ISO files I could look around for other compare programs. 
> 
> Hope this helps,
> Ilya
>...

On 2010-02-19, Mark F <mark53916@gmail.com> wrote:
> On Thu, 18 Feb 2010 18:56:27 +0000 (UTC), Ilya Zakharevich
><nospam-abuse@ilyaz.org> wrote in part:
>
>> > What I am looking for is a utility that can compare an ISO image file
>> > (xyz.ISO) to a burned CD/DVD based on the same ISO image file.
>> 
>> "A burned CD/DVD" *is* a file.  At least on reasonable OSes.  E.g.,
>> did you try \\.\M: ?  If Windows does not support this, one can just
>> make an ISO image from the disk, and use FC (or diff).

> Sonic Record Now and some other programs that I have used include some
> identifying information in the .ISO file.  Perhaps another format
> would give the same result every time I made an image, but can't
> switch from .ISO.

I have no clue what you are talking about.

> In particular, making an ISO file from the same
> real or virtual CD gives different results each time

Then the probrams you use are broken.  ISO image is just a copy of the
DVD (or of "the 2048-sectors" of CD).  All copies should be the same.
(And I expect that \\.M: would be always the same as well...)

Hope this helps,
Ilya

Greegor <greegor47@gmail.com> wrote in
news:d7d59dad-3df7-4079-8439-2c84cc769cd9@l26g2000yqd.googlegr
oups.com: 

<SNIP>

> What's your favorite CD burner software?
> After griping about various others, shouldn't you say?

Sorry, but I rarely get to say BOTH in one reply:

Learn to <SNIP> and learn to read. I state clearly what I use in 
what you did not bother snipping - but /presumably/ did "sort 
of" read.


-- 
The Onion:     Is there a God? 
Winona Ryder:  Is there a God? 
The Onion:     Yes, does God exist? 
Winona Ryder:  Um, I don't know. I really don't know. I hate to 
be so boring, but I don't know.

On Fri, 19 Feb 2010 21:29:48 +0000 (UTC), Ilya Zakharevich
<nospam-abuse@ilyaz.org> wrote:

> On 2010-02-19, Mark F <mark53916@gmail.com> wrote:
> > On Thu, 18 Feb 2010 18:56:27 +0000 (UTC), Ilya Zakharevich
> ><nospam-abuse@ilyaz.org> wrote in part:
> >
> >> > What I am looking for is a utility that can compare an ISO image file
> >> > (xyz.ISO) to a burned CD/DVD based on the same ISO image file.
> >> 
> >> "A burned CD/DVD" *is* a file.  At least on reasonable OSes.  E.g.,
> >> did you try \\.\M: ?  If Windows does not support this, one can just
> >> make an ISO image from the disk, and use FC (or diff).
> 
> > Sonic Record Now and some other programs that I have used include some
> > identifying information in the .ISO file.  Perhaps another format
> > would give the same result every time I made an image, but can't
Oops: I left out a word.  the above should say "but I can't"
> > switch from .ISO.
> 
> I have no clue what you are talking about.
"Sonic Record Now! DELUXE Build 730B75D" will save as .ISO or .GI;
other programs that I have support additional image types.
However, for interchange purposes I have to use only .ISO, even though
it varies from run to run with the programs that I have.

Note that I don't know if the Sonic or other programs that I have,
including MagicISO that I have are actually making .ISO files that
meet the standards - only that the created .ISO files varied from run
to run when I tried things before 2008.  I tried Sonic Record Now
with one CD today and the .ISO file was the same for both runs,
so either the differences I saw in the past were not in header/trailer
identification information in the ISO files or patches that I
applied in the last few years fixed the problem.

Can you point me at a definition of CDROM .ISO files?
I found:  

http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-119.pdf
(1987 "reprinted" in 1998) which is the standard for the on-CD data,
but I couldn't find a standard for ".ISO" files, so I don't know if
are actually forbidden to have identifying information.
 
> 
> > In particular, making an ISO file from the same
> > real or virtual CD gives different results each time
> 
> Then the probrams you use are broken.  ISO image is just a copy of the
> DVD (or of "the 2048-sectors" of CD).  All copies should be the same.
> (And I expect that \\.M: would be always the same as well...)
> 
> Hope this helps,
> Ilya

On 2010-02-22, Mark F <mark53916@gmail.com> wrote:
> Can you point me at a definition of CDROM .ISO files?

Easy: the definition follows from the intended usage:

 ISO file when copied to the media sector-by-2048b-sector should
 produce the identical disk.  (Which implies that some disks cannot be
 mapped to ISO files - they may contain errors in 2376-byte (sp?)
 sectors correctable during translation to 2048b-sectors, etc.)

All bytes matter during copying.  So ISO files produced by reading a
disk must be identical.

Hope this helps,
Ilya

P.S.  I use readcd to produce ISO files, cdrecord (or "flavors", like
      dvddao) to burn them.