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Re: [LUG] Audio-CD copying



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On Tuesday 08 Apr 2003 10:47 am, Tony Atkin wrote:
> On Monday 07 April 2003 10:47 pm, Jonathan Melhuish wrote:
> > On Sunday 30 Mar 2003 9:39 pm, Alex Charrett wrote:
> > > Have you tried cdrdao?  If you have (I assume you have because on
> > > thursday/friday I posted to the list suggesting it several times),
> > > what was the problem with it that stopped it copying audio cds
> > > directly?
> >
> > <hangs head in shame>  I ought to read your replies more carefully,
> > didn't I?
> >
> > I have since tried cdrdao and it does indeed do the trick.  Kinda.  The
> > trouble is that ripping the CD is *so* slow that the fact that it is
> > copying on the fly hardly makes any difference!
> >
> > Worse than that, some of the CDs I have copied "skip" (the error being
> > introduced in the ripping, not burning, process).  Again, the originals
> > look fine and play fine in my CD player.  :-(
> >
> > I'm not quite sure what to do about it...
> >
> > Jon
>
> I havn't used cdrdao myself but looking at the man page it tells me it
> defaults to "full paranoia" when ripping.  If it was not for your
> "skipping" problem I would have suggested that disabling paranoia might
> speed things up, however...

Yeah, I guess it's a trade-off between quality and speed.  I'm just surprised 
that my CD-ROM drive seems to have such problems reading the disc when my 
hi-fi CD player will play it without any noticable quality degregation.  Will 
copying it with "no paranoia" just copy all the errors and leave it to the 
player to sort out?

> My approach to a dodgy cd would be to first give the disk a good polish
> then use cdparanoia in batch mode "cdparanoia -B" to rip all the tracks
> from the cd to wav files and look at the output on the command line to
> find out where the program is having a hard time.  You can then listen to
> parts of the wav files to check if the errors are audible before buring.
> It's time consuming but at least it saves you wasting cd blanks.

They generally aren't particularly 'dodgy' as I tend to keep my CDs quite 
clean and scratch-free!  But yes, that would be an approach; although quite 
what you're supposed to do when you find it does skip I'm not quite sure!

> Are you by any chance trying to copy one of the - so called - copy
> protected cds that are around the shops nowadays.  This could be the
> cause of your errors - see http://ukcdr.org/issues/cd/ for more info.
> There might be some information on the cd cover telling you about this
> but you will need very good eyesight - it's not a "Parental Advisory"
> sticker!

No, they're mostly copies already (of non-copyright material, obviously) so 
the RIAA can go screw itself :-P

Jon
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