Your ImgBurn settings may have image files split into parts at certain file sizes. Since you said the image was 6 GB, if you have a FAT32 partition, you can't merge the split parts into a single ISO on that partition.

If it's FAT32, the new image file MUST be split into parts if the image file is greater than 4 GB. Your target folder for creating a new image file may be on a FAT32 partition instead of NTFS. But when I use imgburn to split a 6GB disk I get two files, program.i00 and program.i01, neither of which is an ISO image. ' Mount the split image in virtual drive software and use ImgBurn to create an image of the virtual drive letter without the splitting'. I tried 'write image file to disk' but that requires a dvd burner as destination rather than ISO file. I tried 'create image file from disk' but that requires a disk as source and not an ISO file. I rarely have access to a dvd burner so I'm limited to writing the ISO file to a hard disk. Then I can mount that ISO file and install the software. I want to be able to combine the components back into one single ISO file on the hard disk of the computer I'm using. These are stored on the flash disk as program.i01, program.i02 etc and program.mds.

My question is: how to I make ISO images of software where the ISO file size exceeds the 4GB limit of FAT32? I've used imgburn to make an ISO image, splitting the file into components of less than 4GB. This formatting enables me to use it on Android tablet and phone. I use a 128 GB flash drive formatted to FAT32. I carry my software as ISO images on a usb stick and install it on the computer available when on site. I travel a lot and my work takes me to places with little or no internet access. Hi! I have a problem storing ISO images on a usb flash disk.

How to join split iso files