Date: Thu, 15 Mar 2001 21:03:34 -0600 From: David Kelly <dkelly@grumpy.dyndns.org> To: Salvo Bartolotta <bartequi@inwind.it> Cc: Ted Mittelstaedt <tedm@toybox.placo.com>, freebsd-questions@FreeBSD.ORG Subject: Re: Dumb "Raw mode" CD copying question... Message-ID: <200103160303.f2G33Ye93367@grumpy.dyndns.org> In-Reply-To: Message from Salvo Bartolotta <bartequi@inwind.it> of "Thu, 15 Mar 2001 20:13:15 GMT." <20010315.20131500@bartequi.ottodomain.org>
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Salvo Bartolotta writes:
> =
> BTW, cdrao enables me to copy all the tracks of an audio CD in a shot. =
I
> have looked at the existing software in the ports; I seem to find out a=
ll
> kinds of manipulation programs ("rippers", "converters", etc.)
> =
> >From a practical standpoint, these are the most used/useful/sought-for=
> applications nowadays in the .mp3 era :-) Yet I am missing how to (simp=
ly
> (?)) make a raw CD copy -- ie, as it were, how to copy =E0 la [s]dd(1).=
Have not tried it but I believe cdrdao will do that. Its smart enough =
to figure out what is on the disc, data, audio, or a mix, take note of =
it, read the tracks, then turn around and put it back on your blank.
This part of the cdrdao(1) manpage leads me to believe it will do what =
you ask:
Track Specification
TRACK <track-mode>
Starts a new track, the track number is incremented
by 1. The length of a track must be at least 4 sec-
onds. The block length of the input data depends on
the <track-mode>: AUDIO: 2352 bytes (588 samples),
MODE1: 2048 bytes, MODE1_RAW: 2352 bytes, MODE2:
2336 bytes, MODE2_FORM1: 2048 bytes, MODE2_FORM2:
2324 bytes, MODE2_FORM_MIX: 2336 bytes including
the sub-header, MODE2_RAW: 2352 bytes. If the
input data length is not a multiple of the block
length it will be padded with zeros.
[...]
DATAFILE "<filename>" [ <length> ]
Adds data from given file to actual data track. If
<length> is omitted the actual file length will be
used.
A single session data cd can be read with:
% dd if=3D/dev/cd0c bs=3D2048 of=3Dfile.iso
A useful thing to do after burning a disc is to verify its contents:
% dd if=3D/dev/cd0c bs=3D2048 | md5
--
David Kelly N4HHE, dkelly@hiwaay.net
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.
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