Question

How to open hidden session on cd-rom?

Asked by: grexx

I have a cdrom with Photoshop Elements on it, Mac & Windows. On my Mac (10.4) I don't see the Windows files, and I suspect that this is put in a hidden session. I always thought that OSX would show all sessions, but apparently not. I need to copy that windows version, so I wonder how I can open that cd-session?

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Asked On
2006-12-21 at 14:50:02ID22101141
Tags

cd

,

session

,

hidden

,

open

Topics

Apple Operating Systems

,

Appletalk

,

Apple

Participating Experts
2
Points
250
Comments
6

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Answers

 

by: eoinosullivanPosted on 2006-12-23 at 03:35:10ID: 18191275

What you have is basically a HYBRID CD .. with Mac and Windows sessions.

If you have software like TOAST Titanium or Dragon Burn .. these support Hybrid CDs and so should allow you to see both sessions.

I don't have a Hybrid CD here to test but you could also try opening terminal ... type   df     to get a list of mounted volumes.

THen browse to the second session on the CD if you can see it listed.

 

by: grexxPosted on 2006-12-23 at 05:02:43ID: 18191413

I tried Toast, but that didn't show anything more than the finder. I tried the Diskutility, and that showed the DVD-writer > Session 1 > cd-name. If I try df, I get a list of mounted filesystems, showing the cd, but only session 1. I know that Windows only shows the last session, so this is quite logical. I tried an Ubuntu-laptop, put the cd in, and that showed the Windows-session, not the Mac. So I got the programs, but still would like to know what's happening here.

 

by: grexxPosted on 2006-12-23 at 05:04:49ID: 18191416

Btw, I used "df", no parameters.

 

by: eoinosullivanPosted on 2006-12-28 at 05:01:53ID: 18207505

Here's a detailed tutorial on how a Hybrid CD works and how to creat one with TOAST
http://davidseah.com/archives/2005/12/19/creating-a-hybrid-cd-rom-with-toast-7/

The OSX session is HFS format and the Windows session is ISO9660.

Accessing the Partition Table for the CD (use "pdisk L" in the Terminal) will reveal the 2 sessions but you'll need something like readcd (part of the cdrecord tools - available in Unbuntu) to force-mount the Windows session as it is not easy to do on the Mac.

 

by: Lieven_EmbrechtsPosted on 2007-01-06 at 05:09:34ID: 18257959

OSX will only mount 1 partition of the hybrid CD.
You can create a diskimage with Toast.
Now open the disk image with toast and mount within toast.
Toast will mount both partitions of the hybrid cd.

Also note that if you create a full copy of that cd with Toast it will copy the entire CD, so both partitions.

 

by: grexxPosted on 2007-01-14 at 06:37:38ID: 18311797

Thanks Lieven! It's not really a quick solution, but it works.

First I had to find out how to create a disk image in Toast, but finally I found out that I could do that via the File Menu (Save as disk image). Then I could mount the disk image, and open both sessions.

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