SamyGO

first of all, black bars are no problem of 720p or 1080p, it`s the movie format 21:9.

get https://sourceforge.net/projects/samygo ... p/download for Samba,NFS etc.
get http://forum.samygo.tv/download/file.php?id=78 for mprotect`s CI+ AVrfix
get http://forum.samygo.tv/download/file.php?id=77 for mprotect`s non CI+ AVrfix

Download the applications as needed, unpack them to your USB Stick, if asked by TV choose content and use them from there.
This are all applications witch run without any firmware modification.

AFAIK FF and RW are only available from USB and different mount options (because they simulate USB) and are not available on DLNA.

For samba/windows shares, make sure you have set an password for the needed account, have you set an Server IP?
Server IP should be the IP of your PC where you share your content.

##### CHANGE MEEEEE !!!!! ######
USER="B650"
PASSWD="b650"
PERM="ro" # can be ro or rw
##### CHANGE MEEEEE END ######

[ -z $USER ] && exit 1
[ -z $PASSWD ] && exit 1

DEST_DIR=/dtv/usb/smb
SERVER="192.168.1.3"
# SERVER="10.0.0.1" # if you want a fixed server
SHARES=""
FR_NAME="DirectPC"
# M_OPTS="rw,user=${USER},password=${PASSWD}"
M_OPTS="$PERM,user=${USER},password=${PASSWD}"

SERVERS="Don't set me!!"

I had some issues without any IP.
And you have to use an FR_NAME, if you changed it, without spaces.

did you try changing spectratio with files played from USB?

sorry for asking this noobish question, have you set up your shares properly?
are they on ntfs formatted drives, if so, have you set the right permissions?
have you another pc in your network witch can see them?

ok,

next question, have you edited the file with standard windows notepad?
if so try editing the original untouched file with notepad2 or notepad++.
original notepad saves files in windows encoding witch sometimes can`t be read by TV.

last thing i could think of is described here
http://forum.samygo.tv/viewtopic.php?f=4&t=342