In other words, there are files inside of the .iso. It’s sort of similar to a .zip file. And when you burn the .iso to the disc, you don’t want to actually burn the .iso file itself so that there is a single .iso file on the disc; but you instead want the burning software to extract the .iso while burning it. You want the burned disc, were you to insert it into your disc drive, to have files on it the same as if you were to, say, browse inside the .iso with WinZip.
And in different terms again 😛 , you simply want to burn an “image” disc, not a “data storage” disc. If you open My Computer, right click the bluray drive and select open / explore and find a single file inside ending in .iso then you’ve burnt a data storage disc 😉 (as it’s only written the file instead of the disc image within the file)
.Val