Here is an example WoW.mfil with the important bits in red:
Code:
version=2
server=akamai
location=http://dist.blizzard.com.edgesuite.net/wow-pod-retail/NA/15890.direct/
server=limelight
location=http://llnw.blizzard.com/wow-pod-retail/NA/15890.direct/
manifest_partial=wow-16357-AE4379D2E6B819E4CC486D91FA298AC8.mfil
This would construct the url
http://dist.blizzard.com.edgesuite.n...1FA298AC8.mfil.