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Trash on Thumbdrives -- perhaps obvious but I just discovered it

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Robert Peirce

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Apr 11, 2013, 10:39:26 AM4/11/13
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I use a thumbdrive for input to an electronic picture frame. My wife
noticed one image that shouldn't be there kept appearing. We searched
the drive and couldn't find it until I looked in .Trash. That's where
it was.

Apparently the picture frame software treats anything in the directory
tree as fair game, including trash. Emptying trash solved the problem.

An interesting sidelight I have not tested is I could probably put the
images in sub-directories based on subject and the picture frame would
find them. That would make it much easier to organize.

Jolly Roger

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Apr 11, 2013, 11:45:23 AM4/11/13
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In article <bob-B76C83.1...@5ad64b5e.bb.sky.com>,
I would consider that a bug in the picture frame software itself.

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Patty Winter

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Apr 11, 2013, 11:48:58 AM4/11/13
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In article <bob-B76C83.1...@5ad64b5e.bb.sky.com>,
Robert Peirce <b...@peirce-family.com> wrote:
>I use a thumbdrive for input to an electronic picture frame. My wife
>noticed one image that shouldn't be there kept appearing. We searched
>the drive and couldn't find it until I looked in .Trash. That's where
>it was.
>
>Apparently the picture frame software treats anything in the directory
>tree as fair game, including trash. Emptying trash solved the problem.

FWIW, I've seen this behavior on other removable devices, too. When I
got a new Garmin GPS receiver a year or so ago, comments from other users
alerted me to always empty the trash before disconnecting the GPSr from
my Mac. Otherwise, items I thought I had trashed were actually still on
the GPSr.


Patty

nospam

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Apr 11, 2013, 1:04:05 PM4/11/13
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In article <jollyroger-921CF...@news.individual.net>,
Jolly Roger <jolly...@pobox.com> wrote:

> > I use a thumbdrive for input to an electronic picture frame. My wife
> > noticed one image that shouldn't be there kept appearing. We searched
> > the drive and couldn't find it until I looked in .Trash. That's where
> > it was.
> >
> > Apparently the picture frame software treats anything in the directory
> > tree as fair game, including trash. Emptying trash solved the problem.
> >
> > An interesting sidelight I have not tested is I could probably put the
> > images in sub-directories based on subject and the picture frame would
> > find them. That would make it much easier to organize.
>
> I would consider that a bug in the picture frame software itself.

the picture frame is looking at all photos on the card, including those
within folders. as far as its concerned, .trash is just another folder.
it's "working as designed". it's not a bug.

it's not reasonable to expect that such a device would check for mac
specific folders and then skip them, especially on a usb stick that's
formatted for windows.

nospam

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Apr 11, 2013, 1:04:10 PM4/11/13
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In article <5166db6a$0$52750$742e...@news.sonic.net>, Patty Winter
<pat...@wintertime.com> wrote:

> >I use a thumbdrive for input to an electronic picture frame. My wife
> >noticed one image that shouldn't be there kept appearing. We searched
> >the drive and couldn't find it until I looked in .Trash. That's where
> >it was.
> >
> >Apparently the picture frame software treats anything in the directory
> >tree as fair game, including trash. Emptying trash solved the problem.
>
> FWIW, I've seen this behavior on other removable devices, too. When I
> got a new Garmin GPS receiver a year or so ago, comments from other users
> alerted me to always empty the trash before disconnecting the GPSr from
> my Mac. Otherwise, items I thought I had trashed were actually still on
> the GPSr.

os x should not put a .trash folder or any other hidden file or folder
(such as .ds_store files) on a windows formatted volume. for trash, it
should delete the file immediately after requesting confirmation, just
as it does with a network volume.

Robert Peirce

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Apr 11, 2013, 6:30:17 PM4/11/13
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In article <110420131304101108%nos...@nospam.invalid>,
nospam <nos...@nospam.invalid> wrote:

> os x should not put a .trash folder or any other hidden file or folder
> (such as .ds_store files) on a windows formatted volume. for trash, it
> should delete the file immediately after requesting confirmation, just
> as it does with a network volume.

I'm not sure if these are Windows or OS X formats. How would I know?
If OS X is supposed to clean out a Windows drive and isn't doing mine
should I assume it is OS X format?

Robert Peirce

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Apr 11, 2013, 6:33:15 PM4/11/13
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> I would consider that a bug in the picture frame software itself.

Or a "feature." A real bug is that I can mount the picture frame's
internal memory on my wife's 10.6 computer but not on my 10.8. I don't
have any problems with any other storage device so I can't even guess
what is wrong with this one.

nospam

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Apr 11, 2013, 7:04:38 PM4/11/13
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In article <bob-F9EB3B.1...@5ad64b5e.bb.sky.com>, Robert
Peirce <b...@peirce-family.com> wrote:

> > os x should not put a .trash folder or any other hidden file or folder
> > (such as .ds_store files) on a windows formatted volume. for trash, it
> > should delete the file immediately after requesting confirmation, just
> > as it does with a network volume.
>
> I'm not sure if these are Windows or OS X formats.

it's windows, unless you reformatted it yourself.

usb sticks are formatted for windows because macs can natively read and
write windows format while windows cannot read or write mac format.

by formatting for windows, a usb stick will work on just about any
system. that would not be the case if it was mac formatted.

cameras, digital picture frames, etc., all assume windows format too.

if you use a usb stick exclusively on a mac, such as for an emergency
os x boot drive, you would want to reformat it for mac, but otherwise
it doesn't matter that much.

> How would I know?

select the volume in finder and get info or check it with disk utility,
but unless you reformatted it yourself, it's windows fat32, possibly
fat16 for older ones.

> If OS X is supposed to clean out a Windows drive and isn't doing mine
> should I assume it is OS X format?

what do you mean by clean out?

Barry OGrady

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Apr 13, 2013, 5:42:20 AM4/13/13
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On Thu, 11 Apr 2013 13:04:05 -0400, nospam <nos...@nospam.invalid>
wrote:
Its a bug in OSX.

David J Richardson

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Apr 13, 2013, 11:18:29 AM4/13/13
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In article <b3aim8hshlnecmkj1...@4ax.com>,
Barry OGrady <ath...@hotmail.com.au> wrote:

> >> > I use a thumbdrive for input to an electronic picture frame. My
> >> > wife noticed one image that shouldn't be there kept appearing.
> >> > We searched the drive and couldn't find it until I looked in
> >> > .Trash. That's where it was.
> >> >
> >> > Apparently the picture frame software treats anything in the
> >> > directory tree as fair game, including trash. Emptying trash
> >> > solved the problem.
> >>
> >> I would consider that a bug in the picture frame software itself.
> >
> >the picture frame is looking at all photos on the card, including
> >those within folders. as far as its concerned, .trash is just
> >another folder. it's "working as designed". it's not a bug.
>
> Its a bug in OSX.

Rubbish. The real bug is Windows NOT having a trash for removable
drives.

--
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Patty Winter

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Apr 13, 2013, 12:57:21 PM4/13/13
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In article <workitout-71C9D...@news.iinet.net.au>,
David J Richardson <work...@davidj.richardson.name> wrote:
>In article <b3aim8hshlnecmkj1...@4ax.com>,
> Barry OGrady <ath...@hotmail.com.au> wrote:
>
>> Its a bug in OSX.
>
>Rubbish. The real bug is Windows NOT having a trash for removable
>drives.

Might the different UNIX "get rid of this file" commands also be
coming into play here? I routinely use "rm," but putting a file
into the Trash is probably a "del" and only becomes "rm" when you
empty the Trash, yes?

One would think that OS X would automatically do the second step
upon ejection of the removable device, but I can see a case for
being cautious and not doing that, in case the user made a mistake
(either in tossing the file or ejecting the device).


Patty

nospam

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Apr 13, 2013, 1:09:39 PM4/13/13
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In article <51698e71$0$52767$742e...@news.sonic.net>, Patty Winter
<pat...@wintertime.com> wrote:

> >> Its a bug in OSX.
> >
> >Rubbish. The real bug is Windows NOT having a trash for removable
> >drives.
>
> Might the different UNIX "get rid of this file" commands also be
> coming into play here? I routinely use "rm," but putting a file
> into the Trash is probably a "del" and only becomes "rm" when you
> empty the Trash, yes?
>
> One would think that OS X would automatically do the second step
> upon ejection of the removable device, but I can see a case for
> being cautious and not doing that, in case the user made a mistake
> (either in tossing the file or ejecting the device).

it's definitely a bug in os x. the problem is that os x adds hidden
files and folders to disks regardless of format. it should only do so
on a mac, where such files mean something. on non-mac formatted drives,
including network shares, it can be anywhere from annoying to cause
some devices to crash.
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