Using rsync to download photos from camera

Hi,

I've been using rsync for many years to synchronize between local
directories or remote PCs. I've also successfully used rsync to synchronize
photos from my Pentax Optio camera to PC, so that only the newly shot photos
are copied.

However, I found the very same approach doesn't work for the Canon camera:

$ rsync -nvua /mnt/camera/dcim/*/* .
building file list ... done
[...]
img_0135.jpg
[...]

$ stat /mnt/camera/dcim/100canon/img_0135.jpg img_0135.jpg
File: `/mnt/camera/dcim/100canon/img_0135.jpg'
Size: 892127 Blocks: 1792 IO Block: 32768 regular file
Device: 811h/2065d Inode: 9817 Links: 1
Access: (0664/-rw-rw-r--) Uid: ( 9999/ tong) Gid: ( 1001/ tong)
Access: 2007-12-27 00:00:00.000000000 -0500
Modify: 2007-12-27 14:27:10.000000000 -0500
Change: 2007-12-27 14:27:10.000000000 -0500
File: `img_0135.jpg'
Size: 885981 Blocks: 1737 IO Block: 131072 regular file
Device: 80eh/2062d Inode: 166857 Links: 1
Access: (0664/-rw-rw-r--) Uid: ( 9999/ tong) Gid: ( 1001/ tong)
Access: 2007-12-27 14:27:10.000000000 -0500
Modify: 2007-12-27 14:27:10.000000000 -0500
Change: 2007-12-27 21:53:41.000000000 -0500

I.e., rsync insists to copy again files that have already been copied,
although I see no obvious reason why it is doing so.

Please comment.

Thanks a lot


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