I recently acquired some Wii games, and I wanted them on my USB hard drive to avoid damaging the discs.
Since the last time I had to do something like this, I switched platforms, I went to wii.hacks.guide, only to discover that what they recommended was slopware:
wii.hacks.guide page for managing backups
Since all I really care about is making WBFS files so they fit on my FAT32-formatted drive, I don't need a full-fledged GUI anyway, so I did some digging and here's what I found.
Note: This is fairly GNU/Linux-centric. Windows or macOS users might be able to replicate this, but I provide no guarantees.
Since I'm running Alpine, I made a Debian 13 distrobox, because I'm lazy.
If your ISO is in parts, you can just follow wii.hacks.guide:
Jointing PART files in wii.hacks.guide
Alternatively, run the following command, with "<ID>" being replaced with the ID of the game you're making a backup for:
cat <ID>.part0.iso <ID>.part1.iso > <ID>.iso
Then (optionally) run the following commands to verify the ISO hashes with the dump information in "<ID>-dumpinfo.txt":
md5sum <ID>.iso sha1sum <ID>.iso
You can also use a GUI, such as Collision, to verify the hashes:
Make sure WIT is installed, then run the following:
wit copy --wbfs <ID>.iso <ID>.wbfs
In most cases, the resulting WBFS file will be suitable for use. If not, you can look at the documentation for help:
WIT copy command documentation
Look at the required directory structure, and just copy that:
That's about it!