It shouldn't be an issue, since ISOs you get from Windows (Media Creation Tool) come with an ESD rather than WIM.
It all depends on how you make the ISO. ISO made with ESD 17134.1.180410-1804.RS4_RELEASE_CLIENTPRO_OEMRET_X64FRE_EN-US.ISO 4,117,490 KB ISO made with UUP Files. 17134.1.180410-1804.RS4_RELEASE_CLIENTPRO_OEMRET_X64FRE_EN-US.ISO 4,057,206 KB Both of these were made with install.wim. You do have the option to make ISO with install.esd which would reduce the size of the ISO even more. I only use Pro, so I have no idea the size of Home.
I ran into that problem just a couple of days ago, a wee bit too much of an ISO to fit on a DVD. I ran in circles for a day trying to find a way to get it burned. I solved it by using Rufus and making a bootable thumb drive. I know that you'd rather not do it this way. But, if his 'puter is capable, that may be the way to go. I'm 75 and could deal with it.
Yes, I told him that too, but he asked me to try to find a way to burn the dvd. He's happy with the 32bit dvd but he really wants to have both versions burned... I'm going to try what you guys told me earlier, thanks.
The answer is already given by @Saxle and @SAM-R, use the iso with install.wim compressed to install.esd: ESD>ISO converted iso by MCT or manually by using @abbodi1406 his ESD>ISO tool. Or manually by simple DISM command: Code: dism /Export-Image /SourceImageFile:"x:\install.wim" /all /DestinationImageFile:"y:\install.esd" /Compress:recovery /checkintegrity Or use wimlib imagex manually or by @abbodi1406 his WIM<>ESD conversion tool (wimlib imagex will compress the esd a little more).
Deleting the SXS folder only decreases the total size with approx. 75MB (x64). Compressing the install.wim to install.esd will decrease the total size with approx. 30%.
Ah, ok, normally the uptodate x64 install.wim is so big, the iso is over 5GB and won't fit on a DVD5, by compressing the wim to esd it will easily fit. In the past i just set overburn in nero and it would burn the dvd wich is 6MB to big.
As pointed out earlier, you can probably use a dual-layer disk, and probably consider adding various patches given the additional space.
Remove unwanted editions. Remove WinPE from the boot.wim. I didnt think you could use dual layer discs to boot from
Compressing is a great suggestion, I was just pointing out an alternative that doesn't require any additional software, just a few DISM lines. My stock, non-ESD image (en_windows_10_consumer_editions_version_1803_updated_march_2018_x64_dvd_12063379.iso) has 6 editions in it and is 4.36 GB in total. The Install.wim is 3.99 GB. I'm not familiar with non-insider Windows Client ISO's being larger than that.