[paranoia] Improvement of extraction on ATAPI CDROM's

[Alex]

Hi Wolfgang,

> Was that, perchance, a Plextor?

Yes it was a Plextor. So now after I moved to normal CD-ROM the extraction
take 3 times more. If I understand correctly, the extraction speed with
paranoia takes more time because of error corrections? And if I will drop
them, will I feel the difference in the quality of the audion?

Thanks and best regards,
Alex

----- Original Message -----
From: Wolfgang Weisselberg <weissel at netcologne.de>
To: Paranoia <paranoia at xiph.org>
Sent: Monday, January 12, 2004 2:58 AM
Subject: Re: [paranoia] Improvement of extraction on ATAPI CDROM's

<p>> Hi, Alex!
>
> Alex (avolkov79 at mail.ru) wrote 71 lines:
>
> > > So, how fast *are* you ripping?
>
> >  I use  Pentium 200hz with LG*52 CDROM for audio ripping. Ripping of 1
minute
> >  of audio disc take me 30 seconds with Atapi driver and 22 seconds with
> >  IDE-SCSI hostadapter emulation. Does it good performance?
>
> 2x and 2.7x --- yes, that's fairly good for a normal CD-Rom
> drive.
>
> >  The reason I ask
> >  is because I had SCSI CDROM before and with other program(that worked
only
> >  with SCSI devices), I ripped 1 minute in about 6 seconds.
>
> Was that, perchance, a Plextor?
>
> >  Therefore I'm
> >  interesting to know if is it possible to reach same performance with
> >  paranoia on IDE CDROM's.
>
> You may get better performance if you completely drop error
> corrections.  These error corrections are however the whole
> reason to use cdparanoia: a 'perfect' copy is the aim.  Since
> Audio-CDs were never designed to be read by a computer and to
> get the copy right is hard work.
>
> Additionally, your drive will do some --- or even a lot --- of
> error correction of it's own, so it depends a lot on the CD and
> the drive how fast you can rip.
>
> It has nothing to do with SCSI or IDE itself: even at 10x speed
> you can push the data faster over the bus than the drive can read
> them --- unless one of the busses itself is blocked or much used
> by other devices.
>
> -Wolfgang
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