Iso burning probs-incorrect block size

I am trying to burn an .iso with nero but it warns me “the entered block size does not correspond to the image length.Do you want to correct the value or ignore the problem”.
Checking the image with WinIso:328912 sectors,sector size is 2352 bytes,single-data track,Joliet Cd Rom file system.
Was the .iso made in the incorrect mode?Must i reset the values or is the image butched?Can I extract the files from the image then burn them?
Any help is greatly appreciated.