Starting to build my library, and ROM size hasn’t been an issue now until I got to PS1.
The file sizes aren’t MASSIVE, but it’s a little annoying to download each individual .CUE/.BIN, and convert to .CHDs.
I looked at some torrents, but they’re mostly a mishmash of formats and clearly put together by someone that is not well organized.
Emudeck has a really nice tool to mass convert a folder to .chd and as far as the rims go I usually just go to the mega thread on /r/roms or you can go to vimm.com