isoinfo adds ;1 to filename in iso

[Nicolò Chieffo]

I executed this command:
isoinfo -l -i video.iso

all files (not directories) in the iso are printed with ;1 in the end of the name.
This is the output:
Directory listing of /
d--------- 0 0 0 2048 Jan 26 2006 [ 259 02] .
d--------- 0 0 0 2048 Jan 26 2006 [ 259 02] ..
d--------- 0 0 0 2048 Jan 26 2006 [ 260 02] AUDIO_TS
d--------- 0 0 0 2048 Jan 26 2006 [ 261 02] VIDEO_TS

Directory listing of /AUDIO_TS/
d--------- 0 0 0 2048 Jan 26 2006 [ 260 02] .
d--------- 0 0 0 2048 Jan 26 2006 [ 259 02] ..

Directory listing of /VIDEO_TS/
d--------- 0 0 0 2048 Jan 26 2006 [ 261 02] .
d--------- 0 0 0 2048 Jan 26 2006 [ 259 02] ..
---------- 0 0 0 12288 Jan 26 2006 [ 463 00] VIDEO_TS.BUP;1
---------- 0 0 0 12288 Jan 26 2006 [ 284 00] VIDEO_TS.IFO;1
---------- 0 0 0 354304 Jan 26 2006 [ 290 00] VIDEO_TS.VOB;1
---------- 0 0 0 86016 Jan 26 2006 [2182701 00] VTS_01_0.BUP;1
---------- 0 0 0 86016 Jan 26 2006 [ 469 00] VTS_01_0.IFO;1
---------- 0 0 0 68079616 Jan 26 2006 [ 511 00] VTS_01_0.VOB;1
---------- 0 0 0 1073739776 Jan 26 2006 [ 33753 00] VTS_01_1.VOB;1
---------- 0 0 0 1073739776 Jan 26 2006 [ 558040 00] VTS_01_2.VOB;1
---------- 0 0 0 1073739776 Jan 26 2006 [1082327 00] VTS_01_3.VOB;1
---------- 0 0 0 1073739776 Jan 26 2006 [1606614 00] VTS_01_4.VOB;1
---------- 0 0 0 106086400 Jan 26 2006 [2130901 00] VTS_01_5.VOB;1
---------- 0 0 0 16384 Jan 26 2006 [2285843 00] VTS_02_0.BUP;1
---------- 0 0 0 16384 Jan 26 2006 [2182743 00] VTS_02_0.IFO;1
---------- 0 0 0 211132416 Jan 26 2006 [2182751 00] VTS_02_1.VOB;1

ProblemType: Bug
Architecture: amd64
Date: Sat Feb 6 16:39:38 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
Package: genisoimage 9:1.1.9-1ubuntu2
ProcEnviron:
 PATH=(custom, user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
SourcePackage: cdrkit
Uname: Linux 2.6.31-19-generic x86_64