> > the blocks 2M aligned you should be fine with most modern BIOSes. > > I meant 2K aligned. On Fri, Jun 28, 2013 at 7:50 PM, Terry Wendt wrote: > If its any help, when I select 9atom.nboot.iso within K3b to burn to > disc, it reports the filesize as 360.9 MB but the declared volume size > as 721.7 GB. > > This is very interesting because it is exactly double >> setvolsize(cd, cd->iso9660pvd, (vlong)cd->nextblock * Blocksize); Yes, the volume size is set here, but I don't see any at least obvious error. Everything seems to be counted rightly in 2K blocks. Are you pointing to an error? because I cannot see it... G.