I am having trouble transferring a large (500meg) video file from a USB Camera. I have had no problems transferring smaller images and videos from the same camera. I have tried using Konqueror file copy and also using digikam. In Konqueror, the transfer never leaves 0%, it just says "stalled", and after a few minutes a generic error message comes up "error copying file" or some such message. In digikam, I can get a thumbnail of the video, but a similar error message appears after a few minutes of transferring. No file is created on the target directory.

This could be a disk space problem; I have plenty (gigs) of file space on the partition I am copying to but the root partition only has around 450 meg free; perhaps it is trying to use the root partition for temp space??

I have tried transferring the same file on an XP machine and it works fine; it does slow down a lot at the end of the file and kills the cpu, but the transfer works OK in the end.

I have a Toshiba Laptop Satellite Pro, Suse9.2; the laptop is around 3 years old.

You could try copying the file from the command line. It will be something like this (depends where your camera is mounted):
cp /mnt/camera/filename /home/john

HTH

Hi,

I have a similar problem when copying large video files to and from my PSP.

Im affraid I think I can explain why this happens but I cant fix it.

It happens because the usb subsystem is a bit wank, its virtualised for speed (meaning why you say - copy file your not actually copying it, the system pretends to copy it and maps over the top) the file actually being copied either when the map is complete or when you unmount the device.

The problem being that this virtualisation breaks with larger file sizes, im not sure why, its annoying but it does.

If the camera has removable media you should copy directly from that. Two reasons: 1. Usb spikes have destroyed usb ports on cameras(see depreview.com). 2. They seem to behave better (once you find one that works).

lazlow