video file copy issue

[tekksan]

I have an external USB FOB that I am trying to copy some video files to. The source of the video files is a drive formatted in MacOS Extended, the destination is exFAT (this is to be used by a Windows host).

When I copy the files (most of which are <16MB), I get erratic results.

When I try and play them off the USB FOB, I get "Quicktime does not support this" or something along those lines. But they play fine off the source media.

I can copy them from the source media to my mac local disk and they play fine too.

If I copy the mp4 from the MacOS Extended drive to another external FOB formatted with MacOS Extended, the video plays.

I'm not sure why I am getting these results. I've tried formatting the USB stick exFAT again but get the same results.I exported several photos also and have no issues with them, it's just the video files (and not even all of them, just some).

Any thoughts?

 

[chabig]

If I understand correctly, the videos don't play from the USB stick but they play fine from everywhere else. I therefore suspect that the USB stick is the problem. Since the formatting shouldn't matter, I further speculate that the USB stick you're using might not support the data transfer rate required by some of your videos. You might have success with another USB stick (perhaps newer).

 

[tekksan]

Yeah, I ordered an actual USB external hard disk instead of just a FOB to see what happens.

 

[dwig]

I have an external USB FOB that I am trying to copy some video files to. The source of the video files is a drive formatted in MacOS Extended, the destination is exFAT (this is to be used by a Windows host).

When I copy the files (most of which are <16MB), I get erratic results.

When I try and play them off the USB FOB, I get "Quicktime does not support this" or something along those lines. But they play fine off the source media.

I can copy them from the source media to my mac local disk and they play fine too.

If I copy the mp4 from the MacOS Extended drive to another external FOB formatted with MacOS Extended, the video plays.

I'm not sure why I am getting these results. I've tried formatting the USB stick exFAT again but get the same results.I exported several photos also and have no issues with them, it's just the video files (and not even all of them, just some).

Any thoughts?

It may be a limitation/fault in Quicktime rather than a fault in the copy process or the USB FOB. A good check would be to:

1. copy file to FOB
2. check to see that it fails to play in Quicktime
3. copy the file from the FOB back to a Mac formated drive
4. see if this copied file will play in Quicktime.

If it plays fine in #4 then there is nothing wrong with the file on the FOB. It's Quicktime that doesn't like the exFAT formated drive. Another test would be to see if another player app (e.g. VLC, ...) can play the file from the exFAT formatted USB FOB.