Transferring MP4 Files to External Hard Drive

I have a MacBook Pro and would like to transfer all of my MP4 movie files to my External Hard Drive, then trash the MP4 files on my laptop so I can free up space on my laptop. How can I do this safely?

That will only happen if you are creating aliases to the files. It will not happen if you are copying the files themselves. Here's an example of an alias icon:
Notice the curved arrow in the lower left corner? That's the indicator an icon is an alias. You will know the difference by looking at what you have copied. Or you can use a backup utility such as Carbon Copy Cloner 3.4.5 to backup the originals to the external backup drive.
To be sure just drag those files to the Trash, but do not Empty the Trash. Check to be sure you can open the files on the external drive. If so then you can Empty the Trash.

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    AV player
    VLC player (free in tunes)

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    Message was edited by: Mark Hilderbrandt

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    Message was edited by: Mark Hilderbrandt

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