Nintendo of America

Why don't the Game Boy Videos work in the Game Boy Player?
Because the Game Boy Player can be attached to a VCR or DVD recorder, the ability was disabled to prevent illegal copying of Game Boy Video material.

How long can movies be?
Currently, up to 45 minutes of high quality video can be put on a Game Boy Video game pak. Larger game paks will be available in the future, allowing for more video per game pak.

Can you put feature films on them?
We do not know of any current plans to release feature films on Game Boy Video at this time.