Phew, now i found a way to make it through the crashing point. I went to the Ficedula folder and start the ff7music.exe . Then i pressed the button "Run ff7" and well, i now can pass the junair_d movie without any problem. But the error messages i mentioned above still appear (although the game is still playable but i think it's annoying).
I just copied the new opengl files in the download of Kranmer (the one with speed hack) and pasted it to the ff7 folder, let it replace any file it want. after that, i met those errors. May be the files of the opengl driver in remix-patch v2.5.1 was changed and those changes was replaced by the new "fresh" file of opengl v0.7.7b which i pasted into the ff7 folder.
But i don't know it's true or not, just guess.
I hope there will be no more freezing point in the future.
EDIT: those errors did not happen before i copy the new opengl driver
This is the content of my app.log:
INFO: FF7/FF8 OpenGL driver version 0.7.7b
INFO: Auto-detected version: FF7 1.02 US English
INFO: Intel Mobile Intel(R) 4 Series Express Chipset Family 2.1.0 - Build 8.15.10.2104
INFO: OpenGL 2.0 support detected
INFO: Found swap_control extension
INFO: Original resolution 640x480, window size 800x600, output resolution 800x600, internal resolution 1280x960
INFO: FBO extension detected, using fast scaling/postprocessing path
INFO: No errors.
INFO: FFMpeg movie player plugin loaded
INFO: FFMpeg version SVN-r21874, Copyright (c) 2000-2010 Fabrice Bellard, et al.
INFO: FF7Music helper plugin loaded
INFO: Loading external library speedhack.dll
LOCK UNLOCK TEST
MATRIX INITIALIZE
INITIALIZE DD/D3D END
initializing sound...
creating dsound primary buffer
reading audio file
loading static sounds
sound initialized
set music volume: 127
set music volume: 127
Entering MAIN
Exiting MAIN
START OF CREDITS!!!
INFO: E:\Program Files\Square Soft, Inc\Final Fantasy VII\movies\eidoslogo.avi; rawvideo/null 364x353, 15.000000 FPS, duration: 0.066667, frames: 1
INFO: E:\Program Files\Square Soft, Inc\Final Fantasy VII\movies\sqlogo.avi; mpeg4/mp3 640x480, 15.000000 FPS, duration: 247.466667, frames: 3712
INFO: No errors.
set music volume trans: 127->0, step=60
END OF CREDITS!!!
Entering MAIN
set music volume: 127
Exiting MAIN
START OF MENU SYSTEM!!!
END OF MENU SYSTEM!!!
Entering MAIN
Exiting MAIN
-=-=[START OF WORLD MAP!!!]=-=-
ERROR: libpng error: Read Error
ERROR: COULD NOT LOAD TEXTURE DATA FILE clf_lg.TEX
ERROR: COULD NOT LOAD TEXTURE DATA FILE clf_lg.tim
stop_sound
cross play music: 0
set music volume trans: 127->0, step=4
set music volume: 127
WM_CLOSE
-=-=[END OF WORLD MAP!!!]=-=-
Field Quit
UNINITIALIZE DD
END UNINITIALIZE DD