CDROM-XA info re: VCD support on OS X

Johan Bilien jobi at
Sat Feb 16 18:14:07 CET 2002

On Fri, Feb 15, 2002, David Nedrow wrote:
> I've been poking around trying to get some info on this for those of you
> working on the port of vls/vlc to OS X.

Thanks a lot.

> One thing I found is that a bug report is open for this. Details at:

It was exactly the same problem under Linux.
> I believe this data is made available via the /dev/disk# node or
> /dev/rdisk# node. You can issue read requests to it and it will return
> data. It is best to read data in the optimal size for the node (you will
> need to issue an ioctl to find this value). If you have a need to read
> different sector sizes there is an additional ioctl to use for a
> READ_CD-like command. See <IOKit/storage/IOCDMediaBSDClient.h>. There is
> definitely a way to do this on OS X. The ISO9660 filesystem doesn't have
> the greatest support for this yet, but hopefully can be extended in the
> future*.

I'll try to find that file, I guess it's exactky what I need to port the
VCD input to MacOS X.


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