I have other Mpeg4 videos that play fine on there. Cropping and resizing is not easy. A better approach may be to use the nearest standard ratio to the one you want and accept some black borders to maintain the image ratio you want. If you have chosen to adapt earlier and checked "Don't ask me again" then you must reactivate the dialogue in the program settings or do a reset. After that, the "Left" value will probably be off so manually set it to "0" again.
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