I've just done what you said but there's a small problem, literally. I combined a 3GB chunk with a 1.37GB chunk and the result was smaller, only 176MB in size. The type of file isn't just .iso though, when I click on properties it says it's a "WinZip File (.iso)". Another weird thing.. when I delete the result and try it again the file size is different each time. It was 158MB when I did it the second time, and now it's 218MB. :/
I managed to get the USB method to work with a different device, a 465GB external hard drive which uses NTFS, but again I have the same problem. I have a WinZip File (.iso) that won't open in Dolphin and I don't what else to do with it, but it is the correct file size of 4.37GB.
I managed to get the USB method to work with a different device, a 465GB external hard drive which uses NTFS, but again I have the same problem. I have a WinZip File (.iso) that won't open in Dolphin and I don't what else to do with it, but it is the correct file size of 4.37GB.