New option -md5, new -as mkisofs option --md5

libisoburn/trunk/xorriso/xorriso.1

@@ -2,7 +2,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO 1 "Aug 09, 2009"
+.TH XORRISO 1 "Aug 10, 2009"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -750,6 +750,14 @@ same filesystems. Use this if mode "on" always sees all files changed.
 The speed advantage appears only if the loaded session was produced with
 -disk_dev_ino "on" too.
 .TP
+\fB\-md5\fR "on"|"off"
+Enable or disable processing of MD5 checksums for the overall session and for
+each single data file. If enabled then MD5 checksums get loaded from the image
+if there are any. At image generation time they are computed for each file
+which gets its data written into the new session. The checksums of files which
+have their data in older sessions get copied into the new session.
+For now checksums can be exploited only via find action get_md5.
+.TP
 \fB\-rom_toc_scan\fR "on"|"off"[:"emul_on"|"emul_off"]
 Read-only drives do not tell the actual media type but show any media as
 ROM (e.g. as DVD-ROM). The session history of MMC multi-session media might