Converting CDR to ISO - MacRumors Forums
Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Systems and Services > OS X

Reply
 
Thread Tools Search this Thread Display Modes
Old Sep 10, 2009, 10:15 AM   #1
BarackOwnbama
macrumors newbie
 
Join Date: Aug 2009
Converting CDR to ISO

Hi,

Apparently, there are two ways to convert disk images in CDR format to ISO format:

1. Rename diskimage.cdr to diskimage.iso

Or

2. hdiutil makehybrid -iso -joliet -o diskimage.iso diskimage.cdr

The first method is really quick while the second method takes quite a long time. Do the two methods yield the same ISO file?

In particular, I would like to convert a bootable CDR disk image to an ISO disk image.

Thanks!
BarackOwnbama is offline   0 Reply With Quote
Old Sep 10, 2009, 11:11 AM   #2
lannister80
macrumors 6502
 
Join Date: Apr 2009
Location: Chicagoland
open terminal and do an md5 check to see:

commands are simply:

md5 /whatever/path/to/file1.iso

and

md5 /whatever/path/to/file2.iso

Should pump out a string of characters. If they match, then the files are identical.
__________________
Early 2008 Mac Pro, 8x2.8GHz, 3.25TB, 18GB RAM
UnRAID NAS, 9TB storage, 3TB parity, 400GB cache
lannister80 is offline   0 Reply With Quote
Old Jul 29, 2010, 01:18 PM   #3
TopRowGuyw/Feet
macrumors newbie
 
Join Date: Oct 2008
I Tested this Out

I tried both methods and then did the md5 check and the numbers are in fact different. Just thought people would like to know.
TopRowGuyw/Feet is offline   0 Reply With Quote
Old Sep 10, 2010, 07:07 PM   #4
PinkyMacGodess
macrumors 68000
 
PinkyMacGodess's Avatar
 
Join Date: Mar 2007
Location: Midwest America.
But if one file is compressed and the other isn't, the hash wouldn't match...

The truth is in the end. Do both result in a workable image? Can you use them? Are they usable?
PinkyMacGodess is offline   0 Reply With Quote
Old Nov 17, 2010, 02:54 PM   #5
rikscha
macrumors 6502
 
Join Date: Mar 2010
does that work the other way around as well? i tried renaming the file but that didnt work.

I have some dvds in iso format and need to import these to imovie.
I know that I had some dvds in cdr format and that these could be easily imported into imovie by simply clicking the "import from camera" button. That unfortunately doesnt work with mounted iso files.

Can someone give me the terminal command for converting iso to cdr? Im not that good with terminal.

Perhaps you even know a better way how to import dvd iso files to imovie?

thanks.

edit: I found this website: http://dustinriley.net/2010/05/24/im...9-is-too-easy/ where it says that you could import the mounted iso by using the 'import camera archive' button but I always get the message that my selected folder is not a camera archive.

Im using imovie '11 instead of '09 Could that be the reason? thanks

edit2: isos were produced under windows.

Last edited by rikscha; Nov 17, 2010 at 03:07 PM.
rikscha is offline   0 Reply With Quote
Old Oct 23, 2011, 06:51 AM   #6
sfinktah
macrumors newbie
 
Join Date: Nov 2010
Quote:
Originally Posted by BarackOwnbama View Post
Hi,

Apparently, there are two ways to convert disk images in CDR format to ISO format:

1. Rename diskimage.cdr to diskimage.iso

Or

2. hdiutil makehybrid -iso -joliet -o diskimage.iso diskimage.cdr

The first method is really quick while the second method takes quite a long time. Do the two methods yield the same ISO file?

In particular, I would like to convert a bootable CDR disk image to an ISO disk image.

Thanks!
Code:
mbp:Downloads mini$ hdiutil makehybrid -iso -joliet -o WIN764OEM.iso WIN764OEM.cdr 
mbp:Downloads mini$ file WIN764OEM.*
WIN764OEM.cdr: ISO 9660 CD-ROM filesystem data 'ARMPXOEM_EN                    ' (bootable)
WIN764OEM.iso: ISO 9660 CD-ROM filesystem data 'ARMPXOEM_EN'
hdiutil makehybrid actually converts the image to a "hybrid" (can be read by multiple operating system) format... specifying the -iso option did make you an iso... but i think .cdr is already an ISO 9660 format file.

An interesting test, is to take the .cdr file we started with, change the extension to .iso, and see if hdiutil generates the same output as it did for the .cdr extension.

Turns out it doesn't. And at this point I shake my head and give up. I'd probably just rename .cdr to .iso and hope for the best. It's not that I think that's the "more correct" answer, it's just that if it's wrong, you'll find out quicker.

Code:
cp WIN764OEM.cdr diskimage_cdr.iso

hdiutil makehybrid -iso -joliet -o diskimage_test.iso diskimage_cdr.iso && md5 diskimage* WIN764OEM.*
Creating hybrid image...
.......................................................................................................................................................................................

MD5 (diskimage.iso) = b9954e47b69a0b7c06a5a705c73a5cb8
MD5 (diskimage_cdr.iso) = 92c3592de69383330b8e47f10144fab5
MD5 (diskimage_test.iso) = ba23865cfd8c91977ed40988d4d3a17e
MD5 (WIN764OEM.cdr) = 92c3592de69383330b8e47f10144fab5
MD5 (WIN764OEM.iso) = b78a5dadea63385ac46378093e276bbb
Code:
mbp:Downloads mini$ cp WIN764OEM.iso diskimage.cdr
mbp:Downloads mini$ hdiutil makehybrid -iso -joliet -o diskimage.iso diskimage.cdr
Creating hybrid image...
....................................................................................................................................................................................

mbp:Downloads mini$
sfinktah is offline   0 Reply With Quote
Old Nov 27, 2011, 07:27 AM   #7
JoesMorgue
macrumors newbie
 
Join Date: Jul 2011
Send a message via AIM to JoesMorgue Send a message via Yahoo to JoesMorgue
Quote:
Originally Posted by BarackOwnbama View Post
Hi,

Apparently, there are two ways to convert disk images in CDR format to ISO format:

1. Rename diskimage.cdr to diskimage.iso

Or

2. hdiutil makehybrid -iso -joliet -o diskimage.iso diskimage.cdr

The first method is really quick while the second method takes quite a long time. Do the two methods yield the same ISO file?

In particular, I would like to convert a bootable CDR disk image to an ISO disk image.

Thanks!
Is there a way to put an icon on the desktop [or dock] that will let you drag a .cdr to it, and it will drop the .iso on your desktop? [Using the make hybrid method]
JoesMorgue is offline   0 Reply With Quote
Old Apr 26, 2013, 02:25 PM   #8
jayrodathome
macrumors newbie
 
Join Date: Feb 2011
Renaming to ISO worked perfect for me. In my case I had a .cdr version of windows 7 that I made with disk utility. I needed an ISO to use for bootcamp install.

I simply renamed it after reading the OP and was able to copy the files and install just fine. Thanks!
jayrodathome is offline   0 Reply With Quote
Old May 23, 2013, 09:18 PM   #9
TC400
macrumors 6502a
 
Join Date: Apr 2010
Location: Pittsburgh, Pennsylvania
Send a message via Skype™ to TC400
Quote:
Originally Posted by jayrodathome View Post
Renaming to ISO worked perfect for me. In my case I had a .cdr version of windows 7 that I made with disk utility. I needed an ISO to use for bootcamp install.

I simply renamed it after reading the OP and was able to copy the files and install just fine. Thanks!
That's what im doing right now... lets hope it works .
__________________
iPod touch 4th Gen 8GB ( LOST ). Silver/White iPad Air 16GB
iMac 21.5 inch Summer 2010. 3RD Gen Apple TV
White iPhone 5 16GB 2012 15 inch rMBP 2.3/256/16GB hp touchpad
TC400 is offline   0 Reply With Quote
Old Sep 30, 2013, 08:03 AM   #10
yungplayz
macrumors newbie
 
Join Date: Jun 2013
There is no apparent difference if you keep using this image on Apple devices. But on IBM PCs an .iso created by simple renaming the *.cdr to *.iso is unusable, unreadable and unmountable.
If you try to mount it, mounting software will crash. I also have an external hard drive case that can imitate a DVD-ROM with a disk in it. It shows the image from its HDD's \_ISO\ folder as a disk inserted. When I select an *.iso image created by renaming a *.cdr and then attach it to the PC, nothing happens. When I then attach it to the Mac, it says disk is unreadable.

CONCLUSION: DO NOT convert *.cdr to *.iso by renaming the file. Else-ways the file will become unusable for any non-Apple device.
yungplayz is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Systems and Services > OS X

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
CDR Burning Issue Tonya99 PowerPC Macs 4 Apr 8, 2014 05:50 PM
DMG vs CDR vs ISO jent Mac Basics and Help 1 Apr 15, 2013 03:21 PM
Unable to burn cdr migdaddy MacBook Pro 6 Jan 16, 2013 08:53 PM
Converting & burning .iso to DVD Broph Mac Basics and Help 1 Sep 17, 2012 09:22 AM
How do I install Snow Leopard ISO on VMWare or become SL's ISO into DMG? gusbemac OS X 3 Sep 3, 2012 03:59 AM

Forum Jump

All times are GMT -5. The time now is 06:13 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC