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I recently came across several bin/cue files on my OS X machine and realized that it’s a huge pain in the ass to convert these to an ISO image.

These directions will show you how to convert bin/cue files into an ISO image on a Mac OS X – including, how to convert a bin/cue AUDIO CD to a bunch of MP3 tracks.


Step 1: Download and unzip (go here for the latest version/original source)

Step 2: After unzipping, copy the bchunk executable into a temporary directory – preferably into the same location as your bin/cue files. This way, after you are all done, you can simply delete it.

Step 3: Open up a Terminal window and navigate to that directory.

Then make bchunk executable by issuing this command:

sudo chmod a+x bchunk

Step 4: Now we are going to actually convert those pesky bin/cue file(s) into an ISO Image.

Simply run bchunk by issuing the following command:

bchunk file.BIN file.CUE outputfile

Note: file.BIN and file.CUE reflect the bin/cue files you are trying to convert.

That will give us something like:

binchunker for Unix, version 1.2.0 by Heikki Hannikainen Created with the kind help of Bob Marietta , partly based on his Pascal (Delphi) implementation.
Support for MODE2/2352 ISO tracks thanks to input from
Godmar Back, Colas Nahaboo
and Matthew Green.
Released under the GNU GPL, version 2 or later (at your option).
Reading the CUE file:
Track 1: MODE1/2352 01 00:00:00
Writing tracks:
1: outputfile.iso 685/685 MB [********************] 100 %

Note: If you are missing a cue file, you will have to create a CUE file manually.

Step 5: Party like a rockstar in your underpants.

That’s it!


Help! bchunk is generating a bunch of .cdr files instead of a ISO file!

I kept getting a bunch of .cdr files initially. This was because my image was a multitrack Audio/Data disc. If you are faced with the same problem, you have two options.

You can either use bin2iso (get the entire toolset here) to convert the bin/cue image into a single ISO


…simply use the -w flag in bchunk to generate a bunch of .WAV files.

I used the latter because using bin2iso kept giving me broken ISO’s.

So, basically, you would use:

bchunk -w Image.bin Image.cue track

This will generate a bunch of track01.wav, track02.wav, track03.wav etc.. files which could be converted to MP3.

I hate iTunes and would recommend All2MP3 for all you OSX fanboys.

I know. I know. It’s a pain in the ass.

If you have a better method, I’d love to hear about it.