Accessing the files on ISO images could be easily done through mount command

mount  isoimage.iso  -o loop -t iso9660 /mnt/myiso
# 1      2            3   4   5    6        7 

1. mount command
2. the iso image file name
3. include option to mount command
4. loop used on the case of mounting filesystem on other filesystem.
5. type
6. the type of iso filesystem
7. the directory you will be mounting you iso image.

you can convert the other images to iso images(using third party programs) to make them mounted easily . this will allow you to access the files only .

Diaa Radwan