creating CDs for use with SGI systems - test-drb@ccmp.vtda.org

4 Jul 2004

On Jul 4, 12:35, Jules Richardson wrote:
...

 I need to create a CD with files on for access by an SGI system. Of
 course, the SGI uses a CDROM drive that uses 512 byte blocks. My desktop
...
  PC's the only thing with a CD burner in it, which
is naturally set to a
...
  block size of 2048.

 From the point of view of creating a CD, does this
matter? Or is the  block size issue only to do with transferring data from the CD
unit to
...
  the host, and iso9660 is the same on both platforms?

No, it doesn't matter.  The block size is just a matter of how the data
is transferred between host and drive, and cdrecord or whatever will
write 2048-byte physical blocks no matter what.  The drive that
eventually reads the CD back will de-block them as required.  It's a
bit like CP/M, if you've come across CP/M's idea of 128-byte logical
sectors mapped onto whatever physical sector size (commonly 256 or 512
bytes for 5.25" floppies) the sytem uses.

But you should be making EFS CDs for IRIX ;-)

-- 
Pete						Peter Turnbull
						Network Manager
						University of York