Why you can’t add or delete photo’s from you SD Memory card…

The number one reason – you’ve inadvertently locked your SD, Mini or Micro SD Memory Card. On the side of all memory cards, there is a small slider. Check to see if your SD card is locked. If the slider on the left side of the card is in the "locked" position, you will not be able to delete photos. Move the slider away from the "locked" position.

SD-Stands for Secure Digital...but is becoming the most common memory card used today

Now when you reinsert the Memory card into your Smartphone, camera or camcorder - you will be able to take photos. When you put the Memory card into your computer you will be able to copy all photos, music, and other data to and from the computer. You will also now be able to delete anything not wanted.

Remember, never delete or remove the DCIM folder that is on every memory card.

What is the DCIM Folder? DCIM (Digital Camera IMages) is the default directory structure for digital cameras and is there to keep your photos and or videos organized. When you put a memory card into a camera, camcorder or Smartphone, the camera device immediately looks for a ‘DCIM' folder. If it doesn't find such a folder, most cameras will create one.

How many photo images can be stored on a Memory Card?

The following information for photo images is a guideline, the number will vary based on several things, such as camera model, internal file size, compression settings, what you have chosen for resolution and compression mode settings and finally, JPEG or .JPG (is a compressed file) compression will result in different file sizes based upon picture complexity…
MP=Megapixels: MB=Megabytes, GB = Gigabytes

This approx. number of photo images can be used on these 2 different size SDHC Memory Cards on 4 different size cameras - 6MP, 8MP, 10MP and 12MP. The SDHC Memory Card is one of the most popular memory card styles used today by camera manufacturers..

4GB: 6MP=1905 images; 8MP 1270 images; 10MP 802 images or 12MP 677 images

8GB: 6MP=3812 images; 8MP 2540 images; 10MP 1604 images or 12MP 1354 images

Note: all memory cards have a DCIM folder (Digital Camera Image) which should never be removed..