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Old 22nd November 2011
J65nko J65nko is online now
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Default OpenBSD : Ripping and writing music CDs with cdio(1)

For a general overview see How do I burn CDs and DVDs?

Following the advice of http://www.openbsd.org/faq/faq13.html#burnIntro we first check how the drive is
recognized by the OpenBSD kernel:

Code:
dmesg | grep ^cd
cd0 at scsibus0 targ 0 lun 0: <Optiarc, DVD RW AD-7200A, 1.09> ATAPI 5/cdrom removable
cd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 4
I used the cdio(1) utility, which is part of the OpenBSD base system. An excerpt from the man page:

Code:
NAME
     cdio - compact disc control utility

SYNOPSIS
     cdio [-sv] [-d host: port] [-f device] [command args ...]

DESCRIPTION
     The cdio program is a compact disc control utility, with support for
     playing audio CDs and TAO CD writing.
For reading the track description from the CDDB server(s), you have to use the 'cddbinfo' command.
Code:
     cddbinfo [n]
             Print the Table Of Contents (TOC) after matching the disc with
             the CDDB.  In case of multiple matches, reissue the command with
             n.
So the following gives us the CD track details:

Code:
$ sudo cdio -f cd0c cddbinfo

Zappa, Frank / Uncle Meat CD1(rock)
-------------------------------------------------
    1   1:55.30  Uncle Meat: Main Title Theme
    2   0:26.45  The Voice of Cheese
    3   6:00.25  Nine Types of Industrial Pollution
    4   0:54.65  Zolar Czakl
    5   3:59.45  Dog Breath, In the Year of the Plague
    6   3:27.67  The Legend of The Golden Arches
    7   2:19.08  Louie Louie [At the Royal Albert Hall in London]
    8   1:48.42  The Dog Breath Variations
    9   0:50.53  Sleeping in a Jar
   10   1:05.22  Our Bizarre Relationship
   11   4:46.15  The Uncle Meat Variations
   12   1:46.28  Electric Aunt Jemima
   13   3:38.45  Prelude to King Kong
   14   1:10.72  God Bless America [Live at the Whisky a Go Go]
   15   1:29.20  A Pound for a Brown on the Bus
   16   5:05.40  Ian Underwood Whips It Out [Live on Stage in Copenhagen]
   17   3:14.03  Mr. Green Genes
   18   2:03.02  We Can Shoot You
   19   1:14.00  "If We'd All Been Living in California..."
   20   2:57.28  The Air
   21   4:49.00  Project X
   22   2:17.60  Cruising for Burgers
  170  57:22.40
Why "sudo" ?
Code:
ls -l /dev/cd*
brw-r-----  1 root  operator    6,   0 Apr  5  2010 /dev/cd0a
brw-r-----  1 root  operator    6,   2 Apr  5  2010 /dev/cd0c
brw-r-----  1 root  operator    6,  16 Apr  5  2010 /dev/cd1a
brw-r-----  1 root  operator    6,  18 Apr  5  2010 /dev/cd1c
Being member of the operator group this is not really needed in my case, but that may not always be that way:

Code:
$ groupinfo operator
name    operator
passwd  *
gid     5
members root j65nko

Requirement for access to the CDDB server(s) is that the firewall should allow outgoing TCP connections to port 888.
Code:
$ grep cddb /etc/services
cddb            888/tcp         cddbp           # Audio CD Database
A pf firewall rule to pass this kind of traffic:
Code:
pass out quick on egress inet proto tcp from egress to any port cddb
The original Uncle Meat album was a vinyl double LP( 4 sides). The CD version also has 2 CD's but the second CD contains what most Zappa fans consider to be three "penalty tracks".
I want to combine the tracks of CD 1 and CD 2 on a single CD, excluding those three tracks.

First create the directory structure:
Code:
$ mkdir UncleMeat
$ cd UncleMeat
$ mkdir CD_1 CD_2
$ ls -l
total 8
drwxr-xr-x  2 j65  j65  512 Nov 21 23:26 CD_1
drwxr-xr-x  2 j65  j65  512 Nov 21 23:26 CD_2

The cdio(1) command to rip the CD is cdrip described in the man page as:
Code:
     cdrip [track1-trackN ...]
             Rip specified tracks from disk.  Audio tracks are saved as WAVE
             sound files.  All tracks will be saved in the current working
             directory.  If parameters are omitted, all tracks are ripped.
             Both individual tracks and track ranges may be specified, in the
             same format as the cdplay command.

     cdplay [track1-trackN ...]
             Play specified tracks from disk.  Unlike play, the CD player need
             not be connected to an audio device; instead it rips tracks from
             disk and outputs audio data to the default audio(4) device or
             aucat(1) socket.  Both individual tracks and track ranges may be
             specified.  If range is specified in descending order tracks will
             be played in descending order.  If the first value in the range
             is omitted, tracks from first track on disk to the specified one
             will be played.  If the last value in the range is omitted,
             tracks from the specified track to the last track on disk will be
             played.[/b]
Reading all tracks of the first CD:

Code:
$ cd CD_1 ;  sudo cdio -f cd0c cdrip
track 1 'a' 00008655/00008655 100%
track 2 'a' 00001995/00001995 100%
track 3 'a' 00027025/00027025 100%
track 4 'a' 00004115/00004115 100%
track 5 'a' 00017970/00017970 100%
track 6 'a' 00015592/00015592 100%
track 7 'a' 00010433/00010433 100%
track 8 'a' 00008142/00008142 100%
track 9 'a' 00003803/00003803 100%
track 10 'a' 00004897/00004897 100%
track 11 'a' 00021465/00021465 100%
track 12 'a' 00007978/00007978 100%
track 13 'a' 00016395/00016395 100%
track 14 'a' 00005322/00005322 100%
track 15 'a' 00006695/00006695 100%
track 16 'a' 00022915/00022915 100%
track 17 'a' 00014553/00014553 100%
track 18 'a' 00009227/00009227 100%
track 19 'a' 00005550/00005550 100%
track 20 'a' 00013303/00013303 100%
track 21 'a' 00021675/00021675 100%
track 22 'a' 00010335/00010335 100%
The directory listing:

Code:
$ ls -l
total 1186400
-rw-------  1 root  j65  20356604 Nov 21 23:35 track01.wav
-rw-------  1 root  j65   4692284 Nov 21 23:35 track02.wav
-rw-------  1 root  j65  63562844 Nov 21 23:36 track03.wav
-rw-------  1 root  j65   9678524 Nov 21 23:36 track04.wav
-rw-------  1 root  j65  42265484 Nov 21 23:36 track05.wav
-rw-------  1 root  j65  36672428 Nov 21 23:37 track06.wav
-rw-------  1 root  j65  24538460 Nov 21 23:37 track07.wav
-rw-------  1 root  j65  19150028 Nov 21 23:37 track08.wav
-rw-------  1 root  j65   8944700 Nov 21 23:37 track09.wav
-rw-------  1 root  j65  11517788 Nov 21 23:37 track10.wav
-rw-------  1 root  j65  50485724 Nov 21 23:38 track11.wav
-rw-------  1 root  j65  18764300 Nov 21 23:38 track12.wav
-rw-------  1 root  j65  38561084 Nov 21 23:39 track13.wav
-rw-------  1 root  j65  12517388 Nov 21 23:39 track14.wav
-rw-------  1 root  j65  15746684 Nov 21 23:39 track15.wav
-rw-------  1 root  j65  53896124 Nov 21 23:40 track16.wav
-rw-------  1 root  j65  34228700 Nov 21 23:40 track17.wav
-rw-------  1 root  j65  21701948 Nov 21 23:41 track18.wav
-rw-------  1 root  j65  13053644 Nov 21 23:41 track19.wav
-rw-------  1 root  j65  31288700 Nov 21 23:41 track20.wav
-rw-------  1 root  j65  50979644 Nov 21 23:42 track21.wav
-rw-------  1 root  j65  24307964 Nov 21 23:42 track22.wav
Eject the disk (because I only have one "cdX' device, I can omit the -f /dev/cd0c specification):
Code:
sudo cdio eject
After removing the first CD and inserting the second CD:
Code:
$ sudo cdio close
Changing to the CD_2 directory and reading the track listing:
Code:
$ cd ../CD_2
$ sudo cdio -f cd0c cddbinfo
Frank Zappa h / Uncle Meat (Disc 2)(rock)
-------------------------------------------------
    1  37:34.45  Uncle Meat film excerpt, part I
    2   3:46.20  Tengo 'na Minchia Tanta
    3   3:51.02  Uncle Meat film excerpt, part II
    4   0:49.00  King Kong Itself (as played by the Mothers in a studio)
    5   1:21.08  King Kong ? (its magnificence as interpreted by Dom DeWild)
    6   1:44.72  King Kong ? (as Motorhead explains it)
    7   6:17.45  King Kong ? (the Gardner Varieties)
    8   0:34.05  King Kong ? (as played by 3 deranged Good Humor trucks)
    9   7:23.55  King Kong (live on a flat bed diesel in the middle of a race
                 track at a Miami Pop Festival...the Underwood ramifications)
  170  63:24.27
Without internet access you can use the info command:

Code:
$ sudo cdio info

 Starting track = 1, ending track = 9, TOC size = 82 bytes
track     start  duration   block  length   type
-------------------------------------------------
    1   0:02.00  37:34.45       0  169095  audio
    2  37:36.45   3:46.20  169095   16970  audio
    3  41:22.65   3:51.02  186065   17327  audio
    4  45:13.67   0:49.00  203392    3675  audio
    5  46:02.67   1:21.08  207067    6083  audio
    6  47:24.00   1:44.72  213150    7872  audio
    7  49:08.72   6:17.45  221022   28320  audio
    8  55:26.42   0:34.05  249342    2555  audio
    9  56:00.47   7:23.55  251897   33280  audio
  170  63:24.27         -  285177       -      -
Being in the CD_2 directory, we now read or rip the tracks 4-9, skipping the first three:
Code:
$ sudo cdio cdrip 4-
track 4 'a' 00003675/00003675 100%
track 5 'a' 00006083/00006083 100%
track 6 'a' 00007872/00007872 100%
track 7 'a' 00028320/00028320 100%
track 8 'a' 00002555/00002555 100%
track 9 'a' 00033280/00033280 100%

$ ls -l
-rw-------  1 root  j65   8643644 Nov 21 23:53 track04.wav
-rw-------  1 root  j65  14307260 Nov 21 23:54 track05.wav
-rw-------  1 root  j65  18514988 Nov 21 23:54 track06.wav
-rw-------  1 root  j65  66608684 Nov 21 23:55 track07.wav
-rw-------  1 root  j65   6009404 Nov 21 23:55 track08.wav
-rw-------  1 root  j65  78274604 Nov 21 23:56 track09.wav
Now we have to solve the following: We have 'track04.wav' up to "track09.wav" files
in both CD_1 and CD_2 directories. I have no idea if that could pose a problem in the track sequence if we
would write them.
We could of course test this with a CD-RW, but by using hard links we can easily solve this issue.

Code:
$ [~/UncleMeat/CD_2] cd ..
$ [~/UncleMeat] ls -l

drwxr-xr-x  2 j65  j65  512 Nov 21 23:42 CD_1
drwxr-xr-x  2 j65  j65  512 Nov 21 23:55 CD_2

$ [~/UncleMeat] ln CD_1/*wav . ; ls -l

drwxr-xr-x  2 j65  j65       512 Nov 21 23:42 CD_1
drwxr-xr-x  2 j65  j65       512 Nov 21 23:55 CD_2
-rw-------  2 root    j65  20356604 Nov 21 23:35 track01.wav
-rw-------  2 root    j65   4692284 Nov 21 23:35 track02.wav
-rw-------  2 root    j65  63562844 Nov 21 23:36 track03.wav
-rw-------  2 root    j65   9678524 Nov 21 23:36 track04.wav
-rw-------  2 root    j65  42265484 Nov 21 23:36 track05.wav
-rw-------  2 root    j65  36672428 Nov 21 23:37 track06.wav
-rw-------  2 root    j65  24538460 Nov 21 23:37 track07.wav
-rw-------  2 root    j65  19150028 Nov 21 23:37 track08.wav
-rw-------  2 root    j65   8944700 Nov 21 23:37 track09.wav
-rw-------  2 root    j65  11517788 Nov 21 23:37 track10.wav
-rw-------  2 root    j65  50485724 Nov 21 23:38 track11.wav
-rw-------  2 root    j65  18764300 Nov 21 23:38 track12.wav
-rw-------  2 root    j65  38561084 Nov 21 23:39 track13.wav
-rw-------  2 root    j65  12517388 Nov 21 23:39 track14.wav
-rw-------  2 root    j65  15746684 Nov 21 23:39 track15.wav
-rw-------  2 root    j65  53896124 Nov 21 23:40 track16.wav
-rw-------  2 root    j65  34228700 Nov 21 23:40 track17.wav
-rw-------  2 root    j65  21701948 Nov 21 23:41 track18.wav
-rw-------  2 root    j65  13053644 Nov 21 23:41 track19.wav
-rw-------  2 root    j65  31288700 Nov 21 23:41 track20.wav
-rw-------  2 root    j65  50979644 Nov 21 23:42 track21.wav
-rw-------  2 root    j65  24307964 Nov 21 23:42 track22.wav
That was easy. Now we only have to create the hard links to tracks 4-9 in the CD_2 directory:

Code:
$ [~/UncleMeat] ln CD_2/track04.wav track23.wav 
$ [~/UncleMeat] ln CD_2/track05.wav track24.wav 
$ [~/UncleMeat] ln CD_2/track06.wav track25.wav 
$ [~/UncleMeat] ln CD_2/track07.wav track26.wav 
$ [~/UncleMeat] ln CD_2/track08.wav track27.wav 
$ [~/UncleMeat] ln CD_2/track09.wav track28.wav

 $ [~/UncleMeat] ls -l 
[snip]
-rw-------  2 root    j65   8643644 Nov 21 23:53 track23.wav
-rw-------  2 root    j65  14307260 Nov 21 23:54 track24.wav
-rw-------  2 root    j65  18514988 Nov 21 23:54 track25.wav
-rw-------  2 root    j65  66608684 Nov 21 23:55 track26.wav
-rw-------  2 root    j65   6009404 Nov 21 23:55 track27.wav
-rw-------  2 root    j65  78274604 Nov 21 23:56 track28.wav
Having all our tracks hard linked in a single directory, we now can write the tracks to the CD:
The appropiate command according to the man page is:

Code:
     tao [-ad] [-s speed] trackfile ...
             [command line only]  Write a track-at-once CD containing the
             specified trackfile.

             The options are as follows:

             -a      Write files as audio tracks.  File formats of audio
                     tracks may be CDDA or WAVE with 2 channels of PCM audio,
                     signed 16-bit (little endian) values sampled at 44100 Hz.
             -d      Write files as data tracks (the default).
             -s speed
                     Specify a write speed for tracks.  speed may be a
                     numerical value between 1 and the maximum speed supported
                     by the media and drive, or one of the literal strings
                     ``auto'' or ``max'', meaning the optimal or maximum speed
                     detected.
Setting the speed to 'auto' we write the tracks:

Code:
$ [~/UncleMeat]sudo cdio -f /dev/cd0c tao -a -s auto *wav

track 01 'a' 00008655/00008655 100%
track 02 'a' 00010802/00010802 100%
track 03 'a' 00037979/00037979 100%
track 04 'a' 00042246/00042246 100%
track 05 'a' 00060368/00060368 100%
track 06 'a' 00076112/00076112 100%
track 07 'a' 00086697/00086697 100%
track 08 'a' 00094991/00094991 100%
track 09 'a' 00098946/00098946 100%
track 10 'a' 00103995/00103995 100%
track 11 'a' 00125612/00125612 100%
track 12 'a' 00133742/00133742 100%
track 13 'a' 00150289/00150289 100%
track 14 'a' 00155763/00155763 100%
track 15 'a' 00162610/00162610 100%
track 16 'a' 00185677/00185677 100%
track 17 'a' 00200382/00200382 100%
track 18 'a' 00209761/00209761 100%
track 19 'a' 00215463/00215463 100%
track 20 'a' 00228918/00228918 100%
track 21 'a' 00250745/00250745 100%
track 22 'a' 00261232/00261232 100%
track 23 'a' 00265059/00265059 100%
track 24 'a' 00271294/00271294 100%
track 25 'a' 00279318/00279318 100%
track 26 'a' 00307790/00307790 100%
track 27 'a' 00310497/00310497 100%
track 28 'a' 00343929/00343929 100%
Closing session.
Being curious, a check with the 'cddbinfo' command:

Code:
$ sudo cdio cddbinfo
cddb: multiple matches
1: misc 8b11b51c Frank Zappa / Uncle Meat (CD's 1 & 2 combined)
According to the man page
Code:
     cddbinfo [n]
             Print the Table Of Contents (TOC) after matching the disc with
             the CDDB.  In case of multiple matches, reissue the command with
             n.
A retry using the number '1':

Code:
$ sudo cdio cddbinfo 1
Frank Zappa / Uncle Meat (CD's 1 & 2 combined)(misc)
-------------------------------------------------
    1   1:57.32  Uncle Meat: Main Title Theme 
    2   0:28.47  The Voice Of Cheese 
    3   6:02.27  Nine Types Of Industrial Pollution 
    4   0:56.67  Zolar Czakl 
    5   4:01.47  Dog Breath, In The Year Of The Plague 
    6   3:29.69  The Legend Of The Golden Arches 
    7   2:21.10  Louie Louie (At the Royal Albert Hall in London) 
    8   1:50.44  The Dog Breath Variations 
    9   0:52.55  Sleeping In A Jar 
   10   1:07.24  Our Bizarre Relationship 
   11   4:48.17  The Uncle Meat Variations 
   12   1:48.30  Electric Aunt Jemima 
   13   3:40.47  Prelude To King Kong 
   14   1:12.74  God Bless America (Live at the Whisky A Go Go) 
   15   1:31.22  A Pound For A Brown On The Bus 
   16   5:07.42  Ian Underwood Whips It Out (Live on stage in Copenhagen)
   17   3:16.05  Mr. Green Genes 
   18   2:05.04  We Can Shoot You 
   19   1:16.02  "If We'd All Been Living in California..." 
   20   2:59.30  The Air 
   21   4:51.02  Project X 
   22   2:19.62  Cruising For Burgers 
   23   0:51.02  King KongItself
   24   1:23.10  King Kong II
   25   1:46.74  King Kong III
   26   6:19.47  King Kong IV
   27   0:36.07  King Kong V
   28   7:23.57  King Kong VI
  170  76:27.56
So somebody else has submitted this CD 1 & 2 combination to the CD DB server(s).

Actually I was a little bit concerned whether this all could fit on a 700 MB CD. The total time is 76:26 minutes.That is below the 80 minutes playing capability of the CD-R, but the nr of MB exceeds it's 700 MB specification:

Code:
du -hc *wav
19.4M   track01.wav
4.5M    track02.wav
60.6M   track03.wav
9.3M    track04.wav
40.3M   track05.wav
35.0M   track06.wav
23.4M   track07.wav
18.3M   track08.wav
8.5M    track09.wav
11.0M   track10.wav
48.2M   track11.wav
17.9M   track12.wav
36.8M   track13.wav
12.0M   track14.wav
15.0M   track15.wav
51.4M   track16.wav
32.7M   track17.wav
20.7M   track18.wav
12.5M   track19.wav
29.9M   track20.wav
48.6M   track21.wav
23.2M   track22.wav
8.3M    track23.wav
13.7M   track24.wav
17.7M   track25.wav
63.5M   track26.wav
5.8M    track27.wav
74.7M   track28.wav
763M    total
My CD player recognized the 28 tracks and succeeded in playing the last track without any noticeable issue.

APPENDIX

An interesting command to find out the capabilities of your CD/DVD drive is using the info command combined with a double verbose flag.
Code:
$ sudo cdio -vv info 

No CD device name specified. Defaulting to cd0.
Features:
0x0000 Profile List (56 bytes of data)
    00 00 03 38|00 2b 00 00 00 1b 00 00 00 1a 00 00
    00 16 00 00 00 15 00 00 00 14 00 00 00 13 00 00
    00 12 00 00 00 11 00 00 00 10 00 00 00 0a 00 00
    00 09 00 00 00 08 01 00 00 02 00 00
    Profiles:
    0x002b DVD+Recordable Dual Layer 
    0x001b DVD+Recordable 
    0x001a DVD+ReWritable 
    0x0016 Dual Layer DVD-R using Layer Jump recording 
    0x0015 Dual Layer DVD-R using Sequential recording 
    0x0014 Re-recordable DVD using Sequential recording 
    0x0013 Re-recordable DVD using Restricted Overwrite 
    0x0012 Re-writable DVD 
    0x0011 Write once DVD using Sequential recording 
    0x0010 Read only DVD 
    0x000a Re-writable Compact Disc 
    0x0009 Write once Compact Disc 
  * 0x0008 Read only Compact Disc [Current Profile]
    0x0002 Re-writable, with removable media 
0x0001 Core (8 bytes of data)
    00 01 0b 08|00 00 00 02 01 00 00 00
0x0002 Morphing (4 bytes of data)
    00 02 07 04|02 00 00 00
0x0003 Removable Medium (4 bytes of data)
    00 03 07 04|39 00 00 00
0x0010 Random Readable (8 bytes of data)
    00 10 01 08|00 00 08 00 00 01 01 00
0x001d Multi-Read
    00 1d 01 00
0x001e CD Read (4 bytes of data)
    00 1e 09 04|83 00 00 00
0x0100 Power Management
    01 00 03 00
0x0105 Timeout (4 bytes of data)
    01 05 07 04|00 00 00 00
0x0107 Real Time Streaming (4 bytes of data)
    01 07 11 04|1f 00 00 00
0x0108 Drive Serial Number (12 bytes of data)
    01 08 03 0c|4c 6b 35 39 34 41 36 68 41 63 76 33
Starting track = 1, ending track = 9, TOC size = 82 bytes
track     start  duration   block  length   type
-------------------------------------------------
    1   0:02.00  37:34.45       0  169095  audio
    2  37:36.45   3:46.20  169095   16970  audio
    3  41:22.65   3:51.02  186065   17327  audio
    4  45:13.67   0:49.00  203392    3675  audio
    5  46:02.67   1:21.08  207067    6083  audio
    6  47:24.00   1:44.72  213150    7872  audio
    7  49:08.72   6:17.45  221022   28320  audio
    8  55:26.42   0:34.05  249342    2555  audio
    9  56:00.47   7:23.55  251897   33280  audio
  170  63:24.27         -  285177       -      -
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Old 23rd November 2011
IdOp's Avatar
IdOp IdOp is offline
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Thanks for the nice write-up J65nko.

About the difference between 80 min audio CD and 700 MB data CD, I once looked into this with the power of google, and wrote a little summary for future reference. Here is the relevant extract of that in case anyone is curious about it:

================================================== ==============
Consider an 80-minute audio CD. Bar spittin', the bytes of data it can hold are audio data, in the amount of (approx):

80 min * 60 s/min * 44100 samples/s * 4 bytes/sample = 846,720,000 bytes

(the final 4 is 2 tracks (L+R) * 2 bytes/track (16-bit sound samples)).

OR = 807.5 MB , M := (1024)^2

However, apparantly when writing a data CD (i.e., iso9660 filesystem) the area of a 2352-byte audio frame (1/75 sec worth) is used to only hold 2048 bytes of data, i.e., 2Kb. This gives a scale-down factor of

2048 / 2352 = 0.87075

and so the CD will only hold

0.87075 * 807.5 = 703.1 MB

This is basically the "700 MB" / "80 min" that almost all commercial CD's advertise on the label. My odd-ball Sun-Power CD-RW's say "730 MB", but I suspect this refers to mega = 10^6, where the above translates into 737.3 million bytes.
================================================== ==============
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Old 23rd November 2011
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Oko Oko is offline
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Even though I have used cdio from the base in the past to rip and burn music CDs in exactly the fashion that you described I just find much easier these days to do ripping with ABCDE http://lly.org/~rcw/abcde/page/. It boils down to about the same except that you are using somebody's debugged script (Ok not quite since ABCDE uses cdparanoia for ripping instead of cdio rip). By the way cdrtools port (cdparanoia is the part of the suit) has just been updated to the latest release 3.0 so everyone who runs OpenBSD current should help testing.
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Old 28th November 2011
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There are some serious problems associated with ripping CD's. The biggest problem is that most CD/DVD drives are not able to accurately report whether an error occurred, and due to strange caching algorithms may produce very strange results.

The CD/DVD drive you use makes a huge difference. Plextor drivers have long since been recognized as being the best in quality.

The "gold standard" for accurate CD ripping is Exact Audio Copy, while excellent software, it is Windows-only and closed source.
I'm not aware of an alternative that runs on BSD. One solution might be to rip them twice and compare hashes...
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Old 30th November 2011
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I only know that Yamaha supposedly uses a technology that produces better quality CD-R's.

From http://en.wikipedia.org/wiki/Optical...lity_Recording

Quote:
Audio Master Quality Recording

Yamaha's Audio Master Quality Recording is intended for maximum compatibility audio CDs, but is only available on some models, notably the CRW3200 series[1] and the F1 series[2].

It uses a Disc At Once method with a fixed linear recording speed of 1.4 m/s, burning longer, sharper pits and lands. Since the pits and lands are longer, the quantity of information that can fit on a disc is less than with a normal method: 63 minutes instead of 74 minutes on a 650meg CD, and 68 minutes instead of 80 minutes on a 700meg CD.

The main advantage of this recording mode is an easier to read audio CD. According to a reviewer, the sound quality is noticeably better.[3]
I am not sure whether these drives are still available.
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Old 30th November 2011
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Those things sound like nonsense, from: http://www.activewin.com/reviews/har...features.shtml

Quote:
new audio data writing mode that basically produces CD-R with less jitter
Quote:
since pits are longer the CD player’s lens receives more reflected information for each pit
Both would be true if CD work like gramophone records. But they don't. It's either a 0 or a 1. I'm not sure what "more reflected information" a CD player is supposed to receive. The same applies to jitter. The jitter isn't read from the CD, it's introduced by your listening equipment.

Quote:
Now you may be wondering if the human ear can hear the difference between an Audio Master recorded CD and a normal written CD. The answer is definitely yes. Indeed the Audio Master recorded CD reproduced, on our Yamaha HiFi system, a much clearer and accurate sound than the same music CD recorded normally.
Since it's not mentioned how the test if performed, II think it's safe to assume it's not a blind test, meaning it's a useless test.

I think this is one that should be added to: http://web.archive.org/web/200702091...audiophile.htm
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