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Old 15th January 2020
Gear Guru

".avi" and ".mov" are basically just containers for data. So you can have a QT with H.264 codec, or with a DNxHD codec. Both of those would give you the same ".mp4" extension. If the problem is that the computer struggles (specifically the CPU) with for example the H.264 codec then going from ".mov" to ".mp4" if it's still the same codec won't help. You'd need a different codec.

So which codec is the file in what type of original container, and have you tried to look up what Avid recommends and export to that instead? If it isn't already what it's supposed to me in which case I apologize for missing it...