To break this down:
//172.26.0.4/H /media/shares/H cifs rw,username=dream,auto, 0 0 |
< 1st column: Device > = //172.26.0.4/H
< 2nd column: default mount point > = /media/shares/H
< 3rd column: Filesystem type > = cifs
< 4th column: Mount options > = rw,username=dream,auto,
< 5th and 6th columns: Dump and fsck options > = 0,0
where H is the shared folder on the PC, which is mounted as /media/shares/H
using a username (on the PC) of dream (and appears to have no password?) or might also be:
rw,username=dream,password=dream,auto,
? (or is it pwd= )?
For reference about fstab see:
_http://www.tuxfiles.org/linuxhelp/fstab.html