Last resort

[Bill Pagano]

I'm a newbie at Debian Linux and trying mybest but when I'm installing 
Debian-9.1.0-i386-netinst, I get to a screenthat's asking me to insert the disc 
labeled: 'Debian GNU/Linux 9.1.0 _Stretch_-official i386 NETINST 
20170722-12:43" in the '/media/cdrom/" andpress [Enter] I've looked everywhere 
and I can't find this iso todownload and burn to a disc. Please point me in the 
right direction. ThanksBill Pagano