If you choose a Store or Fast compression for the games though, yea they'll uncompress faster but be a lot closer in size to before you archived it. If you want it to load instantly then don't compress your games. The only compression I do on my games is CSO and WBFS games. They're not compressed with WinRar or 7zip, but it's only for PSP, PS2 and Wii. Apparently someone on the YouTube channel was saying that their cue sheet loaded up a ecmed PS1 game they had, I was under the impression that you needed to decompress the ecm off of PS1 games for them to work, so there might be that to look in to as well. These compression methods are more native and don't require extra programs to run, just to do the compression.