Joerg Sonnenberger <joerg%britannica.bec.de@localhost> writes: > On Wed, Apr 29, 2015 at 06:53:45PM +0200, Ian D. Leroux wrote: >> Just a thought, but I have a dim recollection that CD-ROMs and DVDs >> typically used different on-disk filesystems. > > ISO9660 vs UDF. Note that ISO9660 has a 4GB limit. It turns out that ISO9660 single extent has a 4G limit, but mkisofs from modern cdrecord creates mluti-extent images. I made an image which was over 4G and just shy of a regular DVD size, and successfully mounted it (via vnconfig) and did diff -r with the original tree from which the .iso was made. So over 4G with ISO9660 does work, with some tools at least. (I have not tried makefs yet.)
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