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Archive 2012 · D4/XQD unreliable ?

  
 
gugs
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p.1 #1 · D4/XQD unreliable ?


I have had a few serious problems with XQD cards. I don't know exactly what to do and I am just posting my findings until now.
I am using XQD and CF cards in my D4, and never had any problems with CF cards. However, I recently took a long series of pictures until the XQD (set as primary that time) was full. I then got an error message and had to remove the XQD card to further shoot and use the CF card. The settings were correct (XQD primary, CF overflow). The message was something like "This card cannot be used in this camera..." Other than that, everything was working properly. I even forgot I had that experience for some time. I could retrieve the pictures and formatted the XQD card. I used the D4 for some time with just a CF card and two weeks ago, I had an assignment with a lot (>1000) pictures to deliver, and I used the D4 and D7000 both with two cards and both set in overflow mode (maybe my mistake ?).
I shot for a few hours, and when the XQD card became approximately full, my shutter button refused working and I got a "This card cannot be used in this camera" message. I panicked because I was in the middle of an assignment with very critical events to take pictures of. The review button showed me 0 pictures on the card, there was nothing left !!! I removed the card and put it back in and after two tries I could take a picture again, the card was recognized, but all pictures were gone ! I then removed the card, put it in my wallet and continued shooting with the CF card. I never felt that bad during an assignment, because I was going to lose a lot of money and my credibility as a supplier.
The day after, after a bad night, I started looking for similar problems on the net, and I found that Sony just released a specific software to recover XQD cards (the software is available since August 2012 if I am not wrong). I downloaded the software, and ran it on the card. After an hour, NOTHING, 0 files found on the card... the process took a few hours, and the rescue software started finding files. At the end of the process, I recovered all files but 3 random pictures, exhibiting strange large horizontal color bars (jpeg files). My assignment has been saved but at a serious (psychological) cost.

For information, the rescue software can be downloaded here
http://www.sony.net/Products/memorycard/en_eu/datarescue/index.html
it is free for XQD owners but you have to enter your serial number (for info, this is the second line of info engraved on the card, 0's are zeroes and the serial 'number' is case sensitive, 'a' will not be recognized as 'A')

At the end of day, I still have a happy customer, but things could have gone completely wrong. You can tell me I should have shot in "backup" mode, have two copies of each picture to prevent this from happening, but I NEVER had a similar problems in something like 300.000 pics using tens of cards (CF and SD) and before the D3 I didn't even own a camera with two cards...

Because of my first experience (no consequences at all), I am now suspecting bugs in the way the D4 is handling the XQD card, but I couldn't find any confirmation of this. Corrupt files or directories could be considered part of the game (statistically speaking) I don't know...

Any comment/advice or similar experience ?

Guy



Sep 16, 2012 at 02:48 PM
Steve Perry
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p.1 #2 · D4/XQD unreliable ?


I wonder if there something wrong with your particular card. Most of the time I unload the photos from my xqd card before it fills, but I have on a few occasions overflowed onto my CF card with no problems.


Sep 16, 2012 at 03:39 PM
MikeW
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p.1 #3 · D4/XQD unreliable ?


sounds card related. Grab another & test, can send the faulty one in for a replacement.


Sep 16, 2012 at 03:53 PM
ucphotog
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p.1 #4 · D4/XQD unreliable ?


I'm wondering if the problem is not the XQD card itself (e.g. electrically or physically), so much as the file system that is on the card (e.g. the data that keeps track of where files are). I don't think we want to get into a discussion of the merits of various file systems (because we really don't have any choice; the camera maker picks the one we use). Nonetheless some file systems are more robust in handling unusual conditions (like card full) than others. The fact that recovery software a) was developed and b) worked tends to indicate the problem is the file system mechanics and not in the card electrically or physically.



Sep 16, 2012 at 04:01 PM
ShutteredMe
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p.1 #5 · D4/XQD unreliable ?


I had a 32gb dead on arrival too.


Sep 16, 2012 at 06:47 PM
Red G8R
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p.1 #6 · D4/XQD unreliable ?


Thanks for the heads up.
I'm using CF primarily and XQD for video so I haven't noticed any problems.



Sep 16, 2012 at 07:28 PM
capttcb
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p.1 #7 · D4/XQD unreliable ?


I have a D4, 16g and 32g XQD cards. I've over-flowed into the CF card a few times and I haven't had any issues yet.


Sep 16, 2012 at 07:38 PM
M635_Guy
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p.1 #8 · D4/XQD unreliable ?


Wow - this cures me of ever doing a "for real" shoot and not using backup.

I'd definitely check w/ the support guys about a replacement card.

I assume the cards that came with the camera aren't covered by a Nikon warranty, right?



Sep 16, 2012 at 07:41 PM
sjms
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p.1 #9 · D4/XQD unreliable ?


2 32GB XQD cards that have proven to be quite reliable


Sep 17, 2012 at 09:53 AM
dbr403
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p.1 #10 · D4/XQD unreliable ?


I have been using the XQD card that came with my D4 and have had no problems but this does concern me somewhat. As per SJMS comment have you found the 32GB cards to "quite" reliable or "totally" reliable, there is no grey area here.


Sep 17, 2012 at 10:53 AM
Matt OHarver
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p.1 #11 · D4/XQD unreliable ?


I just got a D4 2 weeks ago, and just got my second battery and XQD card and reader. I've not had any issues however I've not filled a card. I hope it's not an issue. I have always loved the dual CF cards.


One thing I do not like is how it doesn't "eject" well out of the camera. I push it in to release it and then have to pull it a little to get it out. It ejects right out of my reader though.


Matt



Sep 17, 2012 at 12:38 PM
chuckbernard
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p.1 #12 · D4/XQD unreliable ?


Ok, I believe that there is a bug in the D4 firmware itself. I had a similar problem about 2 weeks ago.
My feeling is that when you fill both cards the D4 has a problem recovering. I've been using mine for several months now and never had a problem until both of the cards filled up.

I was shooting a bicycle race and the shutter refused to activate. The display indicated the problem. I wasn't carrying any extra cards as I was just out for fun anyway. I quickly deleted about 30 shots from the XQD card from a previous shoot. One by one.

Even though there was now space available on the XQD card the camera insisted that the cards were full. Removing the XQD card and reinstalling it didn't help. What helped was to remove both cards, power up, power down, then install only the XQD card.

I tried to reproduce the problem again later but could not. I would report the issue to Nikon service so that they are aware of a problem in the D4 when the cards become full. To me, it is unlikely that the card itself would create these issues. Hard to say but honestly how many of you ever fill both cards? I never have before because I'm always aware and have another card handy long before the card ever fills up. This being said, this is an area that probably doesn't get tested a lot at Nikon either (just a guess of course).



Sep 17, 2012 at 05:34 PM
DaveOls
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p.1 #13 · D4/XQD unreliable ?


I think I read somewhere that you should never totally fill a memory card. I always leave about 20 shots on the card and take it out.


Sep 18, 2012 at 08:44 AM
SoundHound
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p.1 #14 · D4/XQD unreliable ?


Two cards (16 & 32 Gb)-no problems. Very happy that to have virtually limitless (86 RAWs) shots before buffer clog.


Sep 20, 2012 at 09:49 AM
SteveF
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p.1 #15 · D4/XQD unreliable ?


Interesting. No problems with 2 16gb cards, but I have never filled them up while shooting.


Sep 20, 2012 at 10:32 AM
BenV
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p.1 #16 · D4/XQD unreliable ?


DaveOls wrote:
I think I read somewhere that you should never totally fill a memory card. I always leave about 20 shots on the card and take it out.


I can't think of any reason that could ever cause a problem.



Sep 20, 2012 at 11:20 AM
oobie
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p.1 #17 · D4/XQD unreliable ?


Using a Sony 16gig card with no problems yet. Hoping none surface.


Sep 23, 2012 at 11:23 AM
RandyR
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p.1 #18 · D4/XQD unreliable ?


last night i started shooting a footballl game with a full cf card (i had forgotten fo format it) and shot about a 100 shots, this morning the xqd was empty. My d4 is setup to use the CF as primary.
Any ideas ?

Today the D4 writes fine to the xqd w/ the same 'full' cf card in and the same empty xqd card (now the pics get written to the xqd)



Nov 10, 2012 at 07:12 AM
binary visions
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p.1 #19 · D4/XQD unreliable ?


ucphotog wrote:
I'm wondering if the problem is not the XQD card itself (e.g. electrically or physically), so much as the file system that is on the card (e.g. the data that keeps track of where files are). I don't think we want to get into a discussion of the merits of various file systems (because we really don't have any choice; the camera maker picks the one we use).


XQD is using the same FAT32 file system that the CF cards use, though, and I'm not aware of any such problems with dual-CF equipped cameras, or the CF/SD equipped models like the D300s or D7000.

If I had to guess, I'd say it's a bug in how the D4 is writing data to the card. If it didn't align the data properly with the sectors, for instance, you could end up with data that is completely invisible to any normal reading method, but still exists on the card to be recovered by a tool, and it might explain why the D4 goes nuts when this happens; it has a card whose entire contents appears to be full, but invalid and it may be getting an unhandled exception in the software.

That's total speculation, just throwing out an example of how writing bad data to the card might explain the symptoms. Filling a card shouldn't have anything to do with it; that's a function of how the device handles the media, and if it were true, the "overflow" function would be completely useless.

edit: oops, didn't realize this was an old post.



Nov 10, 2012 at 08:34 AM
glenn1
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p.1 #20 · D4/XQD unreliable ?


Hi, Might be a slight problem,i've noticed a few times lately after i take a shot i've got the image to display straight away,but it shows up very dark,if i switch it off and turn it on again the image looks fine.anyone had this happen to them,this only happens on the XQD
card,but have had no problem overflowing to CF card.



Nov 10, 2012 at 04:07 PM
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