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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110 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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196 views

How to fix micro SD card

I have a 16 GB micro SD card in my android smartphone, and lately it has been acting funny. When I attempted to view the files on my computer (Macbook pro OS 10.9) using a USB adapter, it did not show ...
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110 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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232 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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41 views

Worm memory card or pendrive

Do you know if exists a WORM Usb / Flash / SD memory? I want a write once memory not switchable (I can not delete file anyway). I found a Sandisk WORM SD card, but seems out of production...
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106 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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21 views

I want add a new virtual sd card into vmware desktop

I have a VM Ware desktop virtual machine. I need a "virtual" SD Card, but there is not in hardware list and i can't add it.
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1answer
39 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 ...
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2answers
214 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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151 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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1answer
58 views

Micro SD fell into my computer

I tried to put a Micro SD into the slot for the Micro SD but probably there isn't a real slot but just a slit… Well now the Micro SD is inside of the cabinet, how can I get it out of there? Is it ...
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1answer
144 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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55 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
51 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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335 views

RPi kernel panic with Raspbian

Some background: my RPi has been randomly shutting down since pretty much ever, I just reboot it (unplug / wait 1-2 minutes / plug) and it usually works again. I've never been able to trace the ...
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21 views

Extremely Slow SD Card Writes

I'm in a bit of a pickle. I have a 4GB Kingston MicroSD that has worked well for me for years. However, within the last few weeks it's been nigh on unusable due to a strange thing. If I do any sort ...
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1answer
555 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 ...
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1answer
185 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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154 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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0answers
70 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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38 views

Restore files with CHKDSK to different drive due to space issues

After a hw failure, I scanned my SD card with chkdsk /f /r for device errors. The command found and fixed all of the problems but while finishing it asked me if I wanted to convert lost chains into ...
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1answer
81 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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11 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
732 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
138 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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515 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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36 views

Trying to create a new partition table

I have a 64gb sd card which i have used as storage. When i had it in my laptop and by accident i pulled it out when it was mounted. The card didn't mount when i put it back in, but gparteds recovert ...
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106 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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1answer
46 views

Do you know of an ExpressCard 54 SD Card Reader that doesn't stick out and isn't actually USB [closed]

Many ExpressCard 54 devices stick out and are inconvenient to have plugged in all the time. I would like to leave an SD Card reader in all the time as another drive. Do you know of one that doesn't ...
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1k 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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55 views

What should I do about corrupt data in an SD card?

I have an SD card (32GB Sandisk Extreme I think) which has recently been corrupted in some way. It is used in an SLR camera which has its own hardware issues (sometimes things happen when you don't ...
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2answers
1k 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
96 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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247 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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439 views

Sansa Clip Zip freezes when “Refreshing media” from an SD card

My Sansa Clip Zip exhibits a rather well-known issue where it freezes when "Refreshing media" from an SD card. Unfortunately I seem unable to find a way around it. To make sure that nothing goes ...
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78 views

SD card never detects through card reader

MY SD card works fine on windows when I use the inbuilt reader in the laptop. But when I use it with card read (Quantum), it does not work at all. On a linux machine (where I do not have inbuilt ...
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1answer
70 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
853 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
75 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
59 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
227 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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61 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
184 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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1answer
39 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. ...
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1answer
104 views

Unmountable SD card (error -110)

I'm trying to access data unto my micro sdcard (using a SD card adapter) from my Linux system. But each time I try I get nothing but an error into dmesg: mmc0: error -110 whilst initialising SD ...
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3answers
307 views

Link My Documents folder to external SD Card

I have a laptop with 120GB SSD (limited space) and a 64GB SD card in the laptop. I have cloned my hard drive from a clean install of all the software installed. I would like to have the My Documents ...
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131 views

ZFS vs existing filesystem for SD-card

I'm thinking that micro SD-cards, because of their high storage density, are probably especially susceptible to bit rot. So I thought I might give ZFS a try. (I'm open to alternatives..) However, I ...
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3answers
8k views

SD SIM Card Adapter, would one give a MacBook Pro a mobile data connection?

Note, this is not a buying recommendation question. My question is simply this: An SD card SIM adapter, like this one, can I plug a SIM data card into such an adapter, plug the SD card into my ...
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2answers
1k views

Windows not reading sd card, when every other device in the world can

Edit: as of October 8th I am still looking for an answer. I have also tested it from windows 7, same results. I have even gone into gparted, completely wiped all of the data (so it was just ...
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2answers
3k views

Formatting FAT32 with 32KB cluster on Windows 8.1?

I'm lucky: I own a laptop only capable of running Windows Vista. I say this because I had to use said laptop to format an SD card to FAT32 wtih a 32KB cluster, something I found I'm unable to do using ...