Why is it when I try to transfer my pics and videos to my Mac it does not transfer all my videos
When you transfer using a file manager, it transfers only the info in that file. It's likely that there are videos in different folders on the SD card in your Droid. I would try moving over just one of the missing ones and noting which folder that file is located. Once you know which folder the missing files are in, you can just copy over the remaining missing files.
Let us know if that answers your question and/or if that worked.
