Hi, thanks for your work, i quickly checked it and it seems fine, so i just pushed to git.
To grab it:
# git clone https://github.com/kokoko3k/xt7-player.git
# cd xt7-player/
# /path/to/gambas/binaries/gbc3 -e -a -g -t -p -m
Please, if you run into issues due to the translation (eg: you translated some keyword needed to mplayer... it may happens), report it.