Slackware :: Mkisofs -iso-level 1 Converts To Lower Case Instead Of Upper Case?

Kernel 2.6, Slackware 12.0
mkisofs 2.01

I do 'mkisofs -iso-level 1 -o image John Smith.txt'. Only an example. When I mount image, ls outputs john_smi.txt. So it has shorten to 8.3 and translated ' ' into '_'. This is in accordance with the manual, although it doesn't say the conversion will be done.

Quote:

-iso-level level
.........................
With all iso9660 levels from 1..3, all filenames are restricted to upper case letters, numbers and the underscore (_).
...........................

However, as it did not reject the file name, it should have converted it to all upper case, it seems to me. And -iso-level 2|3 does the same thing.

Code:

root@darkstar:~# mkisofs -iso-level 1 -o image John Smith.txt
Total translation table size: 0
Total rockridge attributes bytes: 0
Total directory bytes: 0

[code]....