Re: listening to protected audio cds

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--- Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:

> On Sat, 22 Dec 2007 14:52:09 -0800
> Konstantin Svist <fry.kun@xxxxxxxxx> wrote:
> 
> > Hi all,
> > 
> > Is there a way to listen to "protected" audio CDs
> in Linux/Fedora?
> > It seems that most of the time, the CD can't be
> read at all. Sometimes, 
> > the system is able to read it after trying for 20
> minutes or so - but 
> > it's not consistent (next time it says can't read
> the CD)
> > 
> > Why is it possible on windows but not on Linux?
> > 
> > Note I'm not talking about ripping CD - just
> listening to them.
> 
> If you've got a corrupted piece of shiny plastic
> (note the ones with
> deliberate corruptions are not a 'compact disc' as
> that is a trademark
> reserved for describing real ones) then what happens
> depends a lot on the
> disc itself
> 
> Some sneakily install windows drivers and play mp3
> type copies on a PC,
> others have corruptions so you can play them via an
> audio cable but not
> digitally - if so cdplay will play them but not
> tools that digitally
> rip/play for better quality. Others contain corrupt
> headers which will
> just break on PC hardware.
> 
> Alan
> 
> -- 

Has the OP tried playing using cdda2wav an example

$ cdda2wav -eN dev=/dev/sr0 -t1
plays track 1 from cdrom0, 

It can play from command line and get information from
cd, 

[olivares@localhost ~]$ cdda2wav -eN dev=/dev/sr1 -t1
Type: ROM, Vendor 'TSSTcorp' Model 'CD/DVDW SH-S182D'
Revision 'SB03' MMC+CDDA
569344 bytes buffer memory requested, 4 buffers, 55
sectors
#icedax version 1.1.6, real time sched., soundcard,
libparanoia support
AUDIOtrack pre-emphasis  copy-permitted tracktype
channels
      1-22           no             yes     audio    2
Table of Contents: total tracks:22, (total time
58:13.44)
  1.( 2:23.66),  2.( 2:31.05),  3.( 2:18.09),  4.(
2:52.00),  5.( 2:34.61),
  6.( 2:27.74),  7.( 2:34.49),  8.( 2:12.21),  9.(
2:32.00), 10.( 2:22.62),
 11.( 2:18.64), 12.( 2:54.14), 13.( 2:52.14), 14.(
2:51.03), 15.( 3:08.53),
 16.( 3:02.29), 17.( 2:37.74), 18.( 2:24.26), 19.(
2:59.41), 20.( 2:39.26),
 21.( 2:41.15), 22.( 2:54.13)

Table of Contents: starting sectors
  1.(       0),  2.(   10791),  3.(   22121),  4.(  
32480),  5.(   45380),
  6.(   56991),  7.(   68090),  8.(   79689),  9.(  
89610), 10.(  101010),
 11.(  111722), 12.(  122136), 13.(  135200), 14.( 
148114), 15.(  160942),
 16.(  175095), 17.(  188774), 18.(  200623), 19.( 
211449), 20.(  224915),
 21.(  236866), 22.(  248956), lead-out(  262019)
CDINDEX discid: Chei203NkxAqGhFkNndwCrbxCt0-
CDDB discid: 0x240da516
CD-Text: detected
CD-Extra: not detected
samplefile size will be 25380476 bytes.
recording 143.8799 seconds stereo with 16 bits @
44100.0 Hz
cdda2wav: Operation not permitted. cannot set posix
realtime scheduling policy
percent_done:
  4%
W Child exited with 2
[olivares@localhost ~]$ cdda2wav --help
usage: icedax [OPTIONS ...] [trackfilenames ...]
OPTIONS:
        [-c chans] [-s] [-m] [-b bits] [-r rate] [-a
divider] [-S speed] [-x]
        [-t track[+endtrack]] [-i index] [-o offset]
[-d duration] [-F] [-G]
        [-q] [-w] [-v vopts] [-R] [-P overlap] [-B]
[-T] [-C input-endianess]
        [-e] [-n sectors] [-N] [-J] [-L cddbp-mode]
[-H] [-g] [-l buffers] [-D cd-device]
        [-I interface] [-K sound-device] [-O
audiotype] [-E output-endianess]
        [-A auxdevice] [-paranoia]
[-cddbp-server=name] [-cddbp-port=port] [-version]
  (-D) dev=device               set the cdrom or scsi
device (as Bus,Id,Lun).
  (-A) auxdevice=device         set the aux device
(typically /dev/cdrom).
  (-K) sound-device=device      set the sound device
to use for -e (typically /dev/dsp).
  (-I) interface=interface      specify the interface
for cdrom access.
        (generic_scsi or cooked_ioctl).
  (-c) channels=channels        set 1 for mono, 2 or s
for stereo (s: channels swapped).
  (-s) -stereo                  select stereo
recording.
  (-m) -mono                    select mono recording.
  (-x) -max                     select maximum quality
(stereo/16-bit/44.1 KHz).
  (-b) bits=bits                set bits per sample
per channel (8, 12 or 16 bits).
  (-r) rate=rate                set rate in samples
per second. -R gives all rates
  (-a) divider=divider          set rate to 44100Hz /
divider. -R gives all rates
  (-R) -dump-rates              dump a table with all
available sample rates
  (-S) speed=speedfactor        set the cdrom drive to
a given speed during reading
  (-P) set-overlap=sectors      set amount of overlap
sampling (default is 0)
  (-n) sectors-per-request=secs read 'sectors' sectors
per request.
  (-l) buffers-in-ring=buffers  use a ring buffer with
'buffers' elements.
  (-t) track=track[+end track]  select start track
(option. end track).
  (-i) index=index              select start index.
  (-o) offset=offset            start at 'offset'
sectors behind start track/index.
        one sector equivalents 1/75 second.
  (-O) output-format=audiotype  set to wav, au (sun),
cdr (raw), aiff or aifc format.
  (-C) cdrom-endianess=endian   set little, big or
guess input sample endianess.
  (-E) output-endianess=endian  set little or big
output sample endianess.
  (-d) duration=seconds         set recording time in
seconds or 0 for whole track.
  (-w) -wait                    wait for audio signal,
then start recording.
  (-F) -find-extremes           find extrem amplitudes
in samples.
  (-G) -find-mono               find if input samples
are mono.
  (-T) -deemphasize             undo pre-emphasis in
input samples.
  (-e) -echo                    echo audio data to
sound device (see -K) SOUND_DEV.
  (-v) verbose-level=optlist    controls verbosity
(for a list use -vhelp).
  (-N) -no-write                do not create audio
sample files.
  (-J) -info-only               give disc information
only.
  (-L) cddb=cddbpmode           do cddbp title
lookups.
        resolve multiple entries according to
cddbpmode: 0=interactive, 1=first entry
  (-H) -no-infofile             no info file
generation.
  (-g) -gui                     generate special
output suitable for gui frontends.
  (-Q) -silent-scsi             do not print status of
erreneous scsi-commands.
       -scanbus                 scan the SCSI bus and
exit
       --devices                scan for system
devices and print with native names
  (-M) md5=count                calculate MD-5
checksum for blocks of 'count' bytes.
  (-q) -quiet                   quiet operation, no
screen output.
  (-p) playback-realtime=perc   play (echo) audio
pitched at perc percent (50%-200%).
  (-V) -verbose-scsi            each option increases
verbosity for SCSI commands.
  (-h) -help                    show this help screen.
  (-B) -alltracks, -bulk        record each track into
a seperate file.
       -paranoia                use the lib paranoia
for reading.
       -paraopts=opts           set options for lib
paranoia (see -paraopts=help).
       -cddbp-server=servername set the cddbp server
to use for title lookups.
       -cddbp-port=portnumber   set the cddbp port to
use for title lookups.
       -version                 print version
information.

Please note: some short options will be phased out
soon (disappear)!

parameters: (optional) one or more file names or - for
standard output.
Version 1.1.6
defaults        stereo, 16 bit, 44100.00 Hz, track 1,
no offset, one track,
          type wav 'audio', don't wait for signal, not
quiet,
          use generic_scsi, device /dev/cdrom, aux
/dev/cdrom
[olivares@localhost ~]$   

If this does not work, please let me know.  It has
worked for me in the past.  It lets you also rip the
cd to wav files which can later be burned to make a
non protected cd for your personal use.  

Regards,

Antonio 




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