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lchiesi Author

Level 1

8 points

files disappearing after copying to usb drive

hello,

when i copy a certain number of files from my hd to a usb stick,

some files are not copied, usually ONE gets skipped, sometimes TWO.

i tried several times, and it keeps happening. i searched the forums to no success

(something is mentioned about samba server that looks somewhat the same).

this is the scenario:

OSX10.6.7

SANDISK CRUZER 32 GB

i drag a considerable number of files (>50) to my usb sticks (tried with two different sticks, one

encripted with Truecrypt, one not encripted).

the progress bar looks ok, the number of files that are being transfered matches with the files

that i actually highlighted (from a search results window in finder).

but when the process reaches the end, one file is missing (sometimes two files are missing)

from the destination directory.

i then check the original files and none is damaged or corrupted.

in fact, if i redo the whole process to a new destination directory, one file is again missing, but ANOTHER file, at random.

proof that files are not corrupted is that if i manually copy the missing file it gets copied ok.

i am really flubbergasted.

it is such a simple scenario, yet such a serious bug.

anybody with the same problem?

any help?

Mac OS X (10.6.7)

Posted on Jun 4, 2011 10:55 AM

16 replies

Jun 19, 2011 6:48 PM in response to lchiesi

This same thing happens to me as well, I thought I was going crazy! Anytime I try to copy files onto my flash drives with large numbers of files (i usually copy 100-200 files at a time). Almost always it will be 1 file random file doesn't get copied over, never a warning or error message. I will then have to find the missing file manually by comparing the list of files and then copy that one file over, and then it works. The missing files are never corrupt, and it always seems to be a random file as you say.

I also have 2 flash drives, one is 2GB one is 1GB. Both drives are formatted fat32. No encryption. I simply use these flash drives to play music in my car. None of my music is copy-protected. And no illegal characters in the file names.

I'm running Mac OS X 10.6.7

files disappearing after copying to usb drive