iso9660: data

Скачал из p2p iso-образ Quake3: Arena.
Пытаюсь подмонтировать и получаю:

were@WereHome ~/.aMule/Incoming $ sudo mount "./Quake 3 Arena.iso" /mnt/temp -o loop,users
ioctl: LOOP_CLR_FD: Device or resource busy
mount: you must specify the filesystem type
were@WereHome ~/.aMule/Incoming $ sudo mount -t iso9660 "./Quake 3 Arena.iso" /mnt/temp -o loop,users
mount: wrong fs type, bad option, bad superblock on /dev/loop3,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg tail  or so

were@WereHome ~/.aMule/Incoming $ lsmod | grep loop
loop                   14856  3
were@WereHome ~/.aMule/Incoming $ file "./Quake 3 Arena.iso"
./Quake 3 Arena.iso: data
were@WereHome ~/.aMule/Incoming $

При этом:

were@WereHome ~/.aMule/Incoming $ file /mnt/mine/iso/*.iso
/mnt/mine/iso/0.5.7-basic.iso:                          ISO 9660 CD-ROM filesystem data 'Syllable 0.5.7                 ' (bootable)
/mnt/mine/iso/Alpha_Centauri-Alien_Crossfire-Linux.iso: ISO 9660 CD-ROM filesystem data 'CDROM                          '
/mnt/mine/iso/goldsoft.iso:                             ISO 9660 CD-ROM filesystem data 'Gold Soft 5                    ' (bootable)
/mnt/mine/iso/gparted-livecd-0.1.iso:                   ISO 9660 CD-ROM filesystem data 'livecd                         ' (bootable)
/mnt/mine/iso/install-x86-minimal-2006.0.iso:           ISO 9660 CD-ROM filesystem data 'Gentoo Linux x86 2006.0        ' (bootable)
/mnt/mine/iso/livecd-i686-installer-2006.0.iso:         ISO 9660 CD-ROM filesystem data 'Gentoo Linux 2006.0 x86 LiveCD ' (bootable)
/mnt/mine/iso/papa.iso:                                 ISO 9660 CD-ROM filesystem data 'TESTS                          '
/mnt/mine/iso/postalplus01.iso:                         ISO 9660 CD-ROM filesystem data 'CDROM                          '
/mnt/mine/iso/slax-popcorn-5.0.6.iso:                   ISO 9660 CD-ROM filesystem data 'SLAX                           ' (bootable)
/mnt/mine/iso/ut.iso:                                   ISO 9660 CD-ROM filesystem data 'CD                             '
/mnt/mine/iso/X2-Threat-CD1.iso:                        ISO 9660 CD-ROM filesystem data 'X2CD1                          '
/mnt/mine/iso/X2-Threat-CD2.iso:                        ISO 9660 CD-ROM filesystem data 'X2CD1                          '
were@WereHome ~/.aMule/Incoming $

Что могло произойти? Есть способы восстановить образ?
Не в первый раз встречаюсь с подобным.