Linux without sighted help

[Lorenzo Taylor]

Actually, you're better off waiting about 5 seconds after the CD starts
spinning to press f5. CD's usually spin for about 30 seconds, and
Ubuntu's boot timer runs 30 seconds, so if you wait until the CD stops,
it will start booting before you press f5. On the other hand, the boot
prompt actually appears within 1 second of the CD starting to spin, so
if you wait 5 seconds, you will take into account a potentially slow
computer or drive and still be able to press f5 before booting actually
starts. Once you press f5, you can press 3 and enter twice at any time,
since pressing f5 stops the boot timer.

HTH,
Lorenzo