wd@GentooBox /mnt/windows_d/downloads/snes/roms $ sudo 7z x Toys.7z -o./snesroms

7-Zip 4.42  Copyright (c) 1999-2006 Igor Pavlov  2006-05-14
p7zip Version 4.42 (locale=C,Utf16=off,HugeFiles=on,1 CPU)

Processing archive: Toys.7z

Extracting  Toys (E).smc
Extracting  Toys (U) [!].smc
Extracting  Toys (U) [h1C].smc
Extracting  Toys (U) [o1].smc
Extracting  Toys (U) [t1].smc

Everything is Ok
wd@GentooBox /mnt/windows_d/downloads/snes/roms $ cd
wd@GentooBox ~ $ ls
Desktop  SNES  aqua fluxbox menu.doc  aqua fluxbox menu.txt  install_flash_player_9_linux.tar.gz  test.png
wd@GentooBox ~ $ ls -a
.              .bash_history  .dmrc           .gaim    .gnome2_private  .local     .opera               .thunderbird      Desktop                              test.png
..             .bash_logout   .fehbg          .gconf   .gstreamer-0.8   .mozilla   .qt                  .xchat2           SNES
.ICEauthority  .bash_profile  .fehrc          .gconfd  .irssi           .mplayer   .recently-used       .xine             aqua fluxbox menu.doc
.Xauthority    .bashrc        .fluxbox        .gnome   .kde             .nautilus  .recently-used.xbel  .xsession-errors  aqua fluxbox menu.txt
.Xdefaults     .config        .fonts.cache-1  .gnome2  .lesshst         .ooo-2.0   .thumbnails          .zsnes            install_flash_player_9_linux.tar.gz
wd@GentooBox ~ $ ls
Desktop  SNES  aqua fluxbox menu.doc  aqua fluxbox menu.txt  install_flash_player_9_linux.tar.gz  test.png
wd@GentooBox ~ $ ls -a
.              .bash_history  .dmrc           .gaim    .gnome2_private  .local     .opera               .thunderbird      Desktop                              test.png
..             .bash_logout   .fehbg          .gconf   .gstreamer-0.8   .mozilla   .qt                  .xchat2           SNES
.ICEauthority  .bash_profile  .fehrc          .gconfd  .irssi           .mplayer   .recently-used       .xine             aqua fluxbox menu.doc
.Xauthority    .bashrc        .fluxbox        .gnome   .kde             .nautilus  .recently-used.xbel  .xsession-errors  aqua fluxbox menu.txt
.Xdefaults     .config        .fonts.cache-1  .gnome2  .lesshst         .ooo-2.0   .thumbnails          .zsnes            install_flash_player_9_linux.tar.gz
wd@GentooBox ~ $ sudo ls
Desktop  SNES  aqua fluxbox menu.doc  aqua fluxbox menu.txt  install_flash_player_9_linux.tar.gz  test.png
wd@GentooBox ~ $