Secure Digital (SD) cards are a widely used memory card format used by many technology brands brands in portable electronic devices such as digital cameras.

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64GB SDHC (_not_ SDXC) — how to get this to work with my computer?

I have here a 64GB Micro SDHC card. It is not labelled as SDXC, its manufacturer has quite clearly labelled it as SDHC. While this is not my supplier, the image at http://www.militarygrade.org/blog/...
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0answers
683 views

MIcro SD card gets slower after partial fullfillment

I have a micro SD card from Kingston - 32GB class 10 When i'm writing on it using usb card reader or my phone, average write speed is about 6MB/s But after about 10GB of data written into it, ...
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3answers
644 views

Refresh SD Cards for Long term storage for video files?

I have a large collection of video files most of them in mp4 format. I currently store them in SD Cards. Once I finish filling a SD Card I lock it and never use it again unless I need to read the ...
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1answer
176 views

Handheld Terminal SD Card error: the file may be in read-only memory, on a write-protected disk or used by another application

I have a handheld terminal and I have made the terminal connect to the PC using USB cable. Also, SD Card is also in the handheld terminal slot. Till a few days ago, I was reaching the files in SD ...
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0answers
69 views

Optimal Environment for Secondary Storage [closed]

What's the best temperature/light/humidity exposure for secondary storage (USB/Flash Drives/SSDs), to mitigate the probability of data loss over time? I'm using SD cards to backup data and would ...
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1answer
4k views

Cannot format micro SD Card in mac OSX 10.9

I tried everything but I cannot format it. When opening the disk utilities I get 2 partitions, one which is greyed out. When trying to format the first one it says "couldn't unmount disk". When ...
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1answer
257 views

How to automate copying files from external memory?

I'm looking for an efficient way to copy pictures from SD card to HDD. I'm using adobe suite for editing, and I don't want to "clutter" my PC with otherwise useless software (like Picassa). It would ...
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1answer
567 views

Messed up my SD card something awful. Cannot format, reporting bad sectors, bad partitions.. what can I use to repair?

So, long story short - I created an image of my 16GB SD card used for my Raspberry Pi. I bought a 32GB SD card, wrote the image on it and it is now totally bricked. The SD card is brand new, just ...
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1answer
54 views

Camera memory card full but cannot read or download files

I've got a CanonSDC-32M card that reads full in my camera but I can only view a dozen or so pictures.Tried it in my laptop and the same result.How could I go about downloading my files or recovering ...
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1answer
854 views

Format a protected (corrupted) sd card

Some days ago one of my micro sd cards (a 32gb by Samsung) "decided" it is protected. It has no physical switch and I haven't found a way to format it yet. Every software I try to use says it is ...
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920 views

Filesystem on sd-card lost

Last time I want to bring my photos from SD-card (Sandisk Ultra SDHC 32 GB) to my computer (windows), my computer said that there is no file system on the card and I should format the card. Also my ...
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618 views

Micro SD impossible to modify (write or format)

Recently i had problems with my SD card used for my android device, basically i cannot modify it (write or format). Only read it, if i try format or write, any time that connect and fisconnect from ...
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91 views

Use SYSLINUX to boot from a separate device

I have a laptop with no harddrive that I'm booting from a modified persistent LiveCD thumbdrive, but performance is terrible due to the low speed of the thumbdrive. I also have a class-10 SD card of ...
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1answer
750 views

One SD card transfers file to PC faster than another one

I have several Sandisk SD cards all rated Class 10. One card transfer files to my computer faster than the others. Specifically I had taken several pictures and used a different card each day. One ...
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0answers
253 views

Internal card reader not recognized on boot

In 9/10 times, my internal card reader is not recognized when booting my pc. It's a desktop computer and the card reader is attached directly (internally) to the mainboard (Asus H81M-K) via 9-pin ...
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1answer
98 views

Sd Card Reader Not Working after first time use

Last week I got an SD Card Reader to enable me to download my photos from my camera as I can't do it direct from my camera anymore. It worked fine the first time. Then I safely ejected it and the ...
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1answer
1k views

How do I repair an SD card whose partition format cannot be recognized?

I have a 2GB SD card that was reportedly unreadable on several digital cameras and computers, and I need to get data from it. When I put it in my Mac using a card reader and check Disk Utility or use ...
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1answer
1k views

How does 200x or 300x in relation to an SD card differ from the class rating?

I've always understood "class 10" (or whatever) to refer to the speed of an SD (or SDHC) card, but apparently ratings like 200x or 300x also refer to speed. How do the two rating systems differ? ...
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1answer
269 views

When formatting an SD card, can you set a custom allocation unit size?

I have an SD card that will only store files of 512, 1024, 2048 and 4096 KB in size. I wanted to set the allocation unit size to 512KB, but the maximum allowed in Windows is 64KB. Can I set this ...
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1answer
637 views

Undetectable SD card

I've had some weird stuff going on with my phone SD card so I decided to format it. Right at the 100% of formatting the message box with "Windows can't format this drive" popped up. Now the card is ...
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3answers
282 views

Is there such a thing as a WORM (write-once-read-many) SD memory card or USB flash drive?

Do you know if exists a write-once-read-many (aka: WORM) USB flash or SD memory? I need an electronic write once memory to meet law requirements for storing sensitive data, and I want an alternative ...
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1answer
973 views

Hard drive restore on reboot on windows embedded

My company has an old out of service device with windows embedded on it that we want to re purpose. Any changes to the drive (SD Card with 2 partitions), (ie: installed software, ip address, system ...
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1answer
58 views

Some doubts about Linux partition managment

I am not very experienced using Linux and I have the following situation that cause me some doubts. I have wrote RaspBian (the RaspBerry linux distribution) on an SD card using this command on Ubuntu:...
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2answers
542 views

Bootable SD card still has small memory, even after formating

I have an SD card which I used to run my RaspberryPi. I wanted to update the copy of raspbian on it, so I formated the card using the software from www.sdcard.com. I followed all the instructions ...
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237 views

Why, in Ubuntu, I cant access to an SD card using the laptop SD card reader?

I have ab Ubuntu 12.04 installation on a Virtual Machine and I am finding some problems try to read an SD card inserted into the SD card reader of my laptop. The problem is that if I try to insert ...
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859 views

Does my motherboard support booting from SD card?

How do I check if my motherboard supports booting from an SD card? (In my case this is a Dell XPS 15 I bought sometime in 2010.)
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92 views

Changes applied to SD Card won't stick after unmounting

My friend recently asked me to help her with her SD card. When I tried to read it, I found out that it has corrupted partition table. So, I cleaned it up and then tried to recreate partition table. ...
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2answers
67 views

Super robust SD card cleaner

My friend asked me to help him with her SD card. I looked at it and it was completely messed up (corupted partition table, ...). She doesn't care about the data. I tried recreating partition table, ...
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1answer
1k views

Completely clean-up sd card and create new partition table

My friend recently asked me to help him with his sd card. It just stopped working. So I borrowed it and plugged it to my PC. What I got, was basically nothing. No partitions, corrupted partition table....
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1answer
707 views

Optimal cluster size for random I/O

I'm specifically interested in the answer for NAND storage (SD cards, memory sticks). I have a Windows 7 laptop where I run 2 VM's inside VMWare, as well as multiple programs in the host OS. VM disk ...
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394 views

No Read/Write SD Card Permissions on Windows 7

I'm sorry, I try as often as possible to avoid repeating questions but I've tried the suggestions on previous threads here and elsewhere and I cannot fix it. I have an SD card I'm trying to open ...
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217 views

How can I get rid of a nonexistent disk that appears in /dev as a “ghost” of my SD card (Debian GNU/Linux)?

I have a "ghost" disk registered in /dev. The disk doesn't actually exist - it looks exactly like my SD card (size, partition label and fs) that used to be plugged into the card reader. The card is ...
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1answer
434 views

Cannot format a 64 GB Class 10 SanDisk card

I have this card and it has suddenly gone read only. Windows and my phone can only read and cannot add or delete files from it. I am currently trying gparted to correct this card, but it is of no use. ...
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12 views

Using an SD card for regular backups? [duplicate]

I recently updated to a 128 GB solid state drive, and I've gotta say, I love the boot times and app load times, however I'm not keen on the increased possibility of spontaneous failure. I figure I've ...
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3answers
1k views

My PC is slow after moving Windows 7 profile to SD card [closed]

So I just moved my entire User profile to an 8gd SD card to avoid unnecessary hits on my HDD (my previous HDD died out of spindle failure , so this was a safe than a sorry step) Now , entire Cache, ...
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1answer
439 views

Is my SD card physically broken?

I have a 64GB Kingston Micro SD card that I am wondering if could be physically broken since I am completely unable to repair or restore it. I have no data on it to worry about, so I only want to ...
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6answers
650 views

128 MByte vs. 128 GByte

I recently saw a comparison for 2005 vs. 2014 microSD card: in 2005 there was only max 128 MByte microSD cards, and in 2014, 128 GByte. My question: I'm not 100% sure. Is 128 GByte 1000× bigger than ...
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1answer
391 views

I want to read SMS from SD card

I have my SMS in my Nokia phone saved to the SD memory card in a folder called Private\1000484b\Mail2 (at least I think they are). The folder contains files with no extension whatsoever (just files). ...
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2k views

SD card reader not working on Debian

I'm using Debian for about 6 months and my card reader never worked. I tried several solutions I found online with no luck. How can I make it work? Here's the output generated by lspci 00:00.0 Host ...
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2answers
4k views

Testdisk on SD card heads/cylinder mismatch

I tested the micro SD card of my phone with testdisk, and it says somethings about heads/cylinder mismatch. What is that? SD card should not have heads...
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1answer
181 views

Strange SD card behaviour

I have a Sandisk 8GB SDHC card. Yesterday I was trying to write a Raspberry Pi OS image to it. But it fails in the middle. From then on, the card seems to be "dead" in my desktop PC since it no longer ...
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456 views

Windows 8.1 WriteProtect not working on SDCard

I am using the registry key HKLM\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies\WriteProtect with value 1 to make removable storage read-only. It works for USB drives but not working for SD ...
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1answer
132 views

Trying to install letterbomb onto a SD card in ubuntu. Cannot find SD root dir?

When I plug my SD card in two file systems pop-up boot and 16gb file system, both sub directories of /media/ (which is a dir in ubuntu for periphials correct? not on the SD card itself). Following the ...
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1answer
2k views

SD Card corrupt after copying with dd command

I was trying to move the Pidora (Fedora for Raspberry Pi) image to my sd card using the dd command, but I realized that I had forgot to put in the bs=4M argument and had to terminate the program half ...
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1answer
111 views

Factory Reset (micro)SD Card

This is not similar to other questions on this site. I used WinImage to restore a virtual hard disk to a physical drive. This was so I could make a backup of my Nook. It created a partition of around ...
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1answer
110 views

Unable to load a file within a software using remote desktop connection

I was recently working with Windows Remote desktop connection. The local machine is windows 7 and the remote machine is windows 8. The connection was successful. I have a software installed on the ...
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1answer
617 views

Should I use an sd card as a paging file and readyboost with vista on latitude e6400 with 2gb ram?

Thanks in advance for your time folks. I bought an older friend of mine a cheap laptop after his died as a bit of charity to a poor friend. He's a giant media fiend movies and music. So I thought I ...
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89 views

Quicktime killed my AVCHD file

I have a Sony DSC-HX50V photo camera. The system I have been using for video storage is this AVCHD thing, which consists of a big file storing all the videos. Using Quicktime under Mac OS 10.9.2, it ...
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1answer
412 views

SD card mounting trouble

Im trying to mount an SD card, And it generally (~80%) works great for a few seconds, Long enough for me to see the folder structure, and then unmounts itself. I need to have it monuted long enough ...
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84 views

How would you go about testing (to destruction) the lifespan of a microSD card? [closed]

I'm using microSD cards in a product and I've had some failures due to bad sectors. I've still got more SD cards from the same batch, and I was wanting to see if I could test them to destruction (i.e. ...