user4755: I am using a SEEED SD Card Shield. Everytime I attempt to write the card, I get
When Using File> Examples> SD > CardInfo:
initialization failed. Things to check:
* is a card is inserted?
* Is your wiring correct?
* did you change the chipSelect pin to match your shield or module?

Or when using File>Examples> SD> Files:
Initializing SD card...initialization failed!

I even tried SdFat (IDE couldn't find anything), the "SD Library" by Adafruit (No change), and other things.
I'm using a Funduino MEGA 2560. Could that be the problem?!

user6406: I also use a Seeed Studio SD Shield, and used to have the same problem. To rectify this I have to insert the SD card into my PC and Format it. This almost always helped. If you have a card that has too large of storage, the Arduino will take too much time to check the full memory for information stored on it (initialize). Some SD card readers require a card of 2 gigabytes or less to work. Check the Data Sheet for this limit (if there is one). That should do it for you.

4755: <p>I am using a SEEED SD Card Shield. Everytime I attempt to write the card, I get</p>

<p>When Using File> Examples> SD > CardInfo:</p>

<pre><code>initialization failed. Things to check:
* is a card is inserted?
* Is your wiring correct?
* did you change the chipSelect pin to match your shield or module?
</code></pre>

<p>Or when using File>Examples> SD> Files:</p>

<pre><code>Initializing SD card...initialization failed!
</code></pre>

<p>I even tried SdFat (IDE couldn't find anything), the "SD Library" by Adafruit (No change), and other things.</p>

<p>I'm using a Funduino MEGA 2560. Could that be the problem?!</p>
 6406: <p>I also use a Seeed Studio SD Shield, and used to have the same problem. To rectify this I have to insert the SD card into my PC and Format it. This almost always helped. If you have a card that has too large of storage, the Arduino will take too much time to check the full memory for information stored on it (initialize). Some SD card readers require a card of 2 gigabytes or less to work. Check the Data Sheet for this limit (if there is one). That should do it for you.</p>
