Index: /trunk/src/get_file_info.m
===================================================================
--- /trunk/src/get_file_info.m	(revision 1024)
+++ /trunk/src/get_file_info.m	(revision 1025)
@@ -152,4 +152,7 @@
                             nbfield=numel(fieldnames(FileInfo));
                             FileInfo=orderfields(FileInfo,[nbfield nbfield-3 nbfield-1 nbfield-2 (1:nbfield-4)]); %reorder the fields of fileInfo for clarity
+                            if ~isfield(FileInfo,'NumberOfFrames')
+                                FileInfo.NumberOfFrames=floor(FileInfo.Duration*FileInfo.FrameRate);
+                            end
                         end
                     end