vcd-info: Intelligent Input
2.1.3 Reading from wherever
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The option '--input' or the short form of this '-i' tries to be
intelligent by trying to figure out whether the thing you are referring
to is a device or a bin/cue disk image of a CD.
Currently the algorithm it uses the one that the provided by from the
underlying library: 'libcdio'. It is pretty simple: if the thing
referred to is what in Unix is called a "block" or "character" device
(and there is such a notion in your OS), then it assumes a device name.
When you do "long listing" ("ls -l") of the name and track down possible
symbolic links you will see a "b" or "c" in the first column if the file
is a block or character devices.
If the thing referred to in an '--input' option is a "regular" file
then it is assumed you have a file image of a CD. If the filename ends
(i.e. the extension is) ".bin" or ".BIN" then we assume a "BIN file" if
the filename ends ".nrg or ".NRG we assume a Nero NRG disk image, and if
the filename ends ".toc" or ".TOC" then we assume a 'cdrdao' CD image.
Although this algorithm is subject to change and there may be more
sophisticated or alternative methods, in practice I think this does
pretty much what's expected.
Info Catalog
vcd-info: CD-ROM Device
vcd-info: Where Options