Error during mounting assasin creed revelation

when i click a iso file of assasin creed revelation to mount it, the error appears (the file format is invalid or unsupported)
Can anyone know the solution for this problem??
Answer #1
Answer #2
Use Daemon Tools to mount the image.
Answer #3
Use daemon tools Lite latest version. when you extract you got any error?
Answer #4
1. use daemon tools
2. sometimes there are two files .iso and .mds, try the other one; always use .mds if available