--- a/bintools/evalid/evalid.txt	Thu Nov 11 11:26:32 2010 +0800
+++ b/bintools/evalid/evalid.txt	Thu Nov 11 12:38:08 2010 +0800
@@ -238,3 +238,18 @@
 
 When using the MD5 comparing functionality EVALID processes the contents of the temporary directory
 using the standard EVALID process but amalgamates the results in to one MD5 signiture.
+
+--------
+(ROFS IMAGE file)
+
+EVALID applies "readimage -z" to each file expanding it to a temporary directory and then compares
+the contents of the temporary directory using the following process:
+
+When directly comparing two Rofs image files EVALID will first compare the file listing of the temporary
+directories and return failed if the file listing is not identical.
+If the file listing are identical it will then compare the contents of the two temporary directories
+using the normal EVALID process.
+
+When "-k" (keepgoing) option is specified, EVALID will first compare the file listing. If "-v" option sepcified,
+list the files which do not exist in both directories. Then it will compare the contents of the directories.
+If "-v" option specified, it will report the result for every file in the directories.