-rom_toc_scan nonrom_off disables toc emulation on overwriteables

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 "Oct 02, 2008"
+.TH XORRISO 1 "Oct 06, 2008"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -532,7 +532,7 @@ until the next -dev or -indev. After the image has been loaded once, the
 setting is valid for -rollback until next -dev or -indev, where it
 will be reset to "auto".
 .TP
-\fB\-rom_toc_scan\fR "on"|"off"
+\fB\-rom_toc_scan\fR "on"|"off"|"nonrom_on"|"nonrom_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
 be truncated to first and last session or even be completely false.
@@ -543,8 +543,13 @@ especially the address of the last session, there is a scan for ISO 9660
 filesystem headers which might help but also might yield worse results
 than the drive's table of content. At its end it can cause read attempts
 to invalid addresses and thus ugly drive behavior.
+Setting "on" enables that scan for alleged read-only media.
 .br
-To be in effect, -rom_toc_scan has to be enabled by "on" before the -*dev
+On the other hand the emulation of session history on overwriteable media
+can hamper reading of partly damaged media. Setting "nonrom_off" disables
+the elsewise trustworthy table-of-content scan for those media.
+.br
+To be in effect, -rom_toc_scan settings have to be made before the -*dev
 command which aquires drive and media.
 .TP
 \fB\-ban_stdio_write\fR