Service for converting CD-ROMs into ISO files?

Dave Wade dave.g4ugm at
Sat May 4 15:36:34 CDT 2019

VAX CD-ROMS generally are not ISO. ISO implies the ISO9660 file system, but many VAX CD ROMS are in native VMS Files-11 format.
Some Windows utilities don't handle these so you need third party software to create an image of these CD's.
Generally it has a .iso extension but as the content is not ISO9660 you can't mount it on Windows or Linux.

There a couple of utilities that will convert arbitrary files to image files. 
I tend to use CD Burner XP

but you need to click "More download options" and use the "without install core" versions....


> -----Original Message-----
> From: cctalk <cctalk-bounces at> On Behalf Of ben via cctalk
> Sent: 04 May 2019 19:39
> To: cctalk at
> Subject: Re: Service for converting CD-ROMs into ISO files?
> On 5/4/2019 8:15 AM, Paul Koning via cctalk wrote:
> thought a CD-ROM (data CD) *is* an ISO image.  So I would expect all you
> need to do is make an image copy of the disk.  On Unix systems that's trivial,
> just use the "dd" command to copy /dev/whatever to myfile.iso.
> >
> > 	paul
> Window users rejoice (until the next verion breaks something).

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