I keep getting an memory card error message on my canon PowerShot

<span> <span><img src="maggiena_8.jpg" /><br /></b></span>Canon PowerShot SD780 IS</b> may be the slimmest Digital ELPH Canon has ever created with dimensions 2.10" h x .70" w x 3.40" l, .26 pounds and 2.5 display size. It captivates the senses with bold saturated colors and a daringly original design that matches the intensity of Canon's most innovative camera technology.</span> <span><br /></span> <span><span> <p>Owning to its wonderful picture quality as well as high resolution, it becomes the first choice for many photographer lovers. One more reason that it turns out to be so popular is it supports various standard storage media like SD/SDHC, Multimedia Card, MMC Plus and HC MMC Plus memory cards</b>. images, Video and other multimedia file like songs can be saved there. Usually, keeping a backup of data like pictures and other multimedia files is recommended at the very beginning in case the data was lost by mistake in the process of using the camera. However, if you forgot to backup, you have to use a third party program to <a href="http://www.card-data-recovery.com/">retrieve Canon PowerShot SD780 IS data</a>.<br /> <p><br />Cases about losing data</b><br /> <ul> <li>1. When connect Canon PowerShot SD780 IS to your computer and being transferring vocation photos from SD card to computer, accidently your camera shut down due to low battery. After change the battery and restart camera again, you may encounter the error message "memory card error" that means the memory card is inaccessible.</li> <li>2. While reading data or writing data to SDHC card, "I/O device error" occurs and all photos and video miss.</li> <li>3. On the process of shot, message "memory card is full" pops up to you. However, after deleting some pictures, it shows the same result.</li> <li>4. Connect your SD card reader to computer, the window pops up with message "you have to format SD card before using it". After formatting SD card, all your pictures and video lose.</li></ul> <p>Resolution</b><br />If the above phenomena happen, don't panic, lost photos and video in Canon PowerShot SD780 IS are recoverable. First thing to do is stop using camera to shot for fear that the data was overwritten. For the first two cases, make sure the SDHC memory card is properly inserted. If it still can't be recognized, try to use a card reader to connect it to PC. Or else you have to format memory card and use effective photo recovery software to get back lost photos. For the last two cases, you should rely on <a href="http://www.card-data-recovery.com/">Canon PowerShot SD780 IS picture recovery</a> program. There are many effective Canon digital camera photo recovery program available in the internet, just choose the perfect one for your camera. <br /></b><br /><br /></span></span>