copy program

copy program

[kaushal]

hello list,
          The default copy program in the linux or windows will not
create a file,if the copy process aborts at say the last 5 seconds.Lets
say the file size is 700MB and the copy process failed after copying
695MB and aborted,then we don't have the 695MB file on the hdd.If alone
the copy is successful till 100%we can have it.In windows I came across
a software:unstoppable.exe this software can copy to whatever extent it
is possible.My question is if I want to write a program how should I do
it using C(In linux/windows).As this approach is always recommended why
is it not implemented in the standard cp or copy programs?Earlier I have
posted a question about a problem in copying CDs in linux.Whenever I try
to copy a CD from linux it fails giving the seek error message.But
without mounting the cd if I play it using mplayer command, it plays.
		(mplayer vcd:// )
 while I copy the same CD in windows on the same machine it
succeeds .Can unstoppable kind of software in linux would help me
resolve this issue.Is there such a software?This is like a mystery .It
happens everytime.Any help would be greatly appreciated.Thanks in
advance.

regards-
kaushal.

Re: copy program

[Glynn Clements]

kaushal wrote:

>           The default copy program in the linux or windows will not
> create a file,if the copy process aborts at say the last 5 seconds.Lets
> say the file size is 700MB and the copy process failed after copying
> 695MB and aborted,then we don't have the 695MB file on the hdd.If alone
> the copy is successful till 100%we can have it.

That's because the cp command deletes the destination if there is an
error.

If you don't want this, copy it using "dd".

-- 
Glynn Clements <glynn@gclements.plus.com>

Re: copy program

[Steve Graegert]

On 9/8/05, _z33 <timid.Gentoo@gmail.com> wrote:
> kaushal wrote:
> Earlier I have
> > posted a question about a problem in copying CDs in linux.Whenever I try
> > to copy a CD from linux it fails giving the seek error message.But
> > without mounting the cd if I play it using mplayer command, it plays.
> >               (mplayer vcd:// )
> >  while I copy the same CD in windows on the same machine it
> > succeeds .
> 
> I still face the same problem in Linux while copying something from a
> CD. It succeeds in windoze , but fails in Linux :(

I have made similar observations mostly with free operating systems. 
My assumption is that some device drivers for Windows offer far better
error correction and other software services than those found on Linux
(or any other open source OS).  This is not necessarily a bad thing,
since the device drivers do what they are supposed to do; and they do
it well.  I know that some drives have buggy firmware which is fixed,
or worked around at least, by device drivers.  Most often, these bugs
are not documented, impeding driver writers for noncommercial OS to
provide the same level of reliability found on other systems.  A
situation unlikely to be changed in the near future.  Interestingly, I
was able to make improvements by updating the firmware of one of the
Toshiba DVD drives resulting in much less errors under NetBSD and
OpenSolaris (no, this drive has never seen Linux, but I bet the result
is the same).


Regards

	\Steve

--

Steve Graegert <graegerts@gmail.com>
Software Consultancy {C/C++ && Java && .NET}
Mobile: +49 (176)  21248869
Office: +49 (9131) 7126409

Re: copy program

[Glynn Clements]

kaushal wrote:

> Earlier I have
> posted a question about a problem in copying CDs in linux.Whenever I try
> to copy a CD from linux it fails giving the seek error message.But
> without mounting the cd if I play it using mplayer command, it plays.
> 		(mplayer vcd:// )

Er, are you talking about VCDs or data CDs?

For VCDs, look at vcdimager.

-- 
Glynn Clements <glynn@gclements.plus.com>

Re: copy program

[_z33]

kaushal wrote:
Earlier I have
> posted a question about a problem in copying CDs in linux.Whenever I try
> to copy a CD from linux it fails giving the seek error message.But
> without mounting the cd if I play it using mplayer command, it plays.
> 		(mplayer vcd:// )
>  while I copy the same CD in windows on the same machine it
> succeeds .

I still face the same problem in Linux while copying something from a 
CD. It succeeds in windoze , but fails in Linux :(


_z33
-- 
I love TUX; well... that's an understatement :)

Re: copy program

[kaushal]

hi Clements,
         Is it going to matter if it is vcd or data cd?If yes then I
want to copy both the kinds.

-kaushal.

On Thu, 2005-09-08 at 17:26 +0100, Glynn Clements wrote:
> kaushal wrote:
> 
> > Earlier I have
> > posted a question about a problem in copying CDs in linux.Whenever I try
> > to copy a CD from linux it fails giving the seek error message.But
> > without mounting the cd if I play it using mplayer command, it plays.
> > 		(mplayer vcd:// )
> 
> Er, are you talking about VCDs or data CDs?
> 
> For VCDs, look at vcdimager.
> 

Re: copy program

[Glynn Clements]

kaushal wrote:

>          Is it going to matter if it is vcd or data cd?If yes then I
> want to copy both the kinds.

Yes.

Like audio CDs, VCDs use mode-2 sessions, which have less error
correction than data CDs (but can store more data, e.g. a standard
80-minute CD-R can hold 700MB as a data CD but 800MB as a VCD or audio
CD).

To copy mode-2 CDs, you will want software which doesn't abort on an
I/O error (and, ideally, prevents or limits retries within the CD
drive itself).

Try some of the links found from:

	http://www.google.com/search?q=VCD%20%22mode%202%22

for more information.

-- 
Glynn Clements <glynn@gclements.plus.com>

Re: copy program

[kaushal]

Hi Clements,
            Thanks a lot for sharing the intricacies.
cheers-
kaushal.
On Fri, 2005-09-09 at 13:39 +0100, Glynn Clements wrote:
> kaushal wrote:
> 
> >          Is it going to matter if it is vcd or data cd?If yes then I
> > want to copy both the kinds.
> 
> Yes.
> 
> Like audio CDs, VCDs use mode-2 sessions, which have less error
> correction than data CDs (but can store more data, e.g. a standard
> 80-minute CD-R can hold 700MB as a data CD but 800MB as a VCD or audio
> CD).
> 
> To copy mode-2 CDs, you will want software which doesn't abort on an
> I/O error (and, ideally, prevents or limits retries within the CD
> drive itself).
> 
> Try some of the links found from:
> 
> 	http://www.google.com/search?q=VCD%20%22mode%202%22
> 
> for more information.
> 

Re: copy program

[szonyi calin]

--- _z33 <timid.Gentoo@gmail.com> a écrit :

> kaushal wrote:
> Earlier I have
> > posted a question about a problem in copying CDs in
> linux.Whenever I try
> > to copy a CD from linux it fails giving the seek error
> message.But
> > without mounting the cd if I play it using mplayer command,
> it plays.
> > 		(mplayer vcd:// )
> >  while I copy the same CD in windows on the same machine it
> > succeeds .
> 
> I still face the same problem in Linux while copying something
> from a 
> CD. It succeeds in windoze , but fails in Linux :(
> 

Linux had no support for video cd's. That's why you can't use a
vcd disk as a normal disk in Linux.
You can use mplayer's stream dump facility to dump the video
from the CD



--
A mouse is a device used to point at 
the xterm you want to type in.
Kim Alm on a.s.r.


	

	
		
___________________________________________________________________________ 
Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger 
Téléchargez cette version sur http://fr.messenger.yahoo.com
-
To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: copy program

[kaushal]

hello list,

          thank you all for the support.
regards-
kaushal

On Sun, 2005-09-11 at 10:25 +0200, szonyi calin wrote:
> --- _z33 <timid.Gentoo@gmail.com> a écrit :
> 
> > kaushal wrote:
> > Earlier I have
> > > posted a question about a problem in copying CDs in
> > linux.Whenever I try
> > > to copy a CD from linux it fails giving the seek error
> > message.But
> > > without mounting the cd if I play it using mplayer command,
> > it plays.
> > > 		(mplayer vcd:// )
> > >  while I copy the same CD in windows on the same machine it
> > > succeeds .
> > 
> > I still face the same problem in Linux while copying something
> > from a 
> > CD. It succeeds in windoze , but fails in Linux :(
> > 
> 
> Linux had no support for video cd's. That's why you can't use a
> vcd disk as a normal disk in Linux.
> You can use mplayer's stream dump facility to dump the video
> from the CD
> 
> 
> 
> --
> A mouse is a device used to point at 
> the xterm you want to type in.
> Kim Alm on a.s.r.
> 
> 
> 	
> 
> 	
> 		
> ___________________________________________________________________________ 
> Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger 
> Téléchargez cette version sur http://fr.messenger.yahoo.com
> -
> To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

-
To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html