[PLUG] using dd

[Bill Spears]

On Fri, 2004-02-13 at 11:03, Zot O'Connor wrote:
> On Fri, 2004-02-13 at 10:50, Rich Shepard wrote:
> > On Fri, 13 Feb 2004, Vincent Yau wrote:
> > 
> > > I have a bunch of VCD format movies in CD that I want to dd out
> > > to my harddrive as iso.
> > >
> > > So I did this:
> > >
> > >    mount /dev/cdrom
> > >   dd if=/dev/cdrom of=/usr/local/cdfile.iso
> > 
> >   See related thread from a couple of days ago. Then read 'man mkisofs'
> > before reading 'man cdrecord'.
> > 
> 
> Ahhhh
> 
> You and cooper are wrong here.
> 
> 
> This *should* have worked perfectly.
> 
> as Rich said, dd is a "bit copy" which means it will use the file system
> from the VCD.
> 
Not completely true.  In the recent past, I had similar trouble. I had
burned some .iso's but I couldn't dd them back to the disk.  What I
found was that if burned with the DAO option dd worked if not it
wouldn't quite copy the whole iso. (When mounted the cdrom file system
was correct!)
-- 
Bill Spears <bspears at easystreet.com>