Thanks a bunch for your help again. I put my gamecube disc into my laptops dvd tray and nothing happened. I don't think my laptop can read it. It's a dell inspiron 1440. Is that normal? I'll look into the dolphin.
Genuine copies of Gamecube and Wii games are created with nonstandard physical data patterns. Only two obscure consumer disc drives can read them. Ergo, your laptop won't be able to read them for copying or playing with Dolphin. To use games with Dolphin, you'll simply have to download the ISOs or use a modded Wii to directly copy the discs yourself if need be.
To answer your question about Dolphin, it is an emulation software that allows someone with a reasonably powerful computer to play Wii and Gamecube games on their PC. You don't have to worry about Dolphin at all if you merely wish to play copies of games on your Gamecube or Wii.
Burning mini DVD-Rs for your Gamecube has a number of requirements. First and foremost, your Gamecube will have to be modded and it's laser will have to be manually recalibrated to work correctly with your burned discs. However, the easier option is to merely mod a Wii instead, you'll be able to play both Wii and Gamecube games with it and you won't need to tinker with the disc drive in it.
In either case, if you wish to play backups of games on your Gamecube or Wii, they will have to be modified to work with your backups. I'm not sure what your preferred option is here, either using Dolphin or a modded console.
I guess my question is, can I use the downloads on this site for backup, and if so, would I be able to use the oRAR ones for gamecube? I have a couple disc that are quite scratched and I really like them too.
Yes, the downloads on this site can be used for backups. The oRARs are the highest quality backups you can find, so yes, you can use them with a modded Gamecube or modded Wii. But again, they'll have to be modified to work.
To burn a disc, I actually recommend ImgBurn instead of Alcohol 120% if you decide to go the route of burning discs for a modded console. ImgBurn is free and works flawlessly with burning ISOs.
Let me know what you plan to do then I'll be able to point you towards the relevant tutorials you'll need to get started.