I took photos of my Irish vacation on an 8 gig PNY SD chip, on a Canon SD1100 IS digital ELPH, IXUS 80IS camera. I could initially review all photos and some video on the camera while on my trip. When I returned home, the photos could not be found using a thumb drive converter for my computer or by the local Canon photo dealers recovery equipment. Note: I also used a PNY 4 gig chip in the same camera, and that device recorded photos, and those photos could be downloaded to my dell laptop computer. Question is? Is there anyway to recover those once in a lifetime photos?

I have had success with this camera recovery software named asoftech photo recovery... Download the program
http://www.asoftech.com/apr/

You have to use a card reader either on your computer or an external USB card reader. Put the card in the card reader, open the recovery program, then select the drive where files are deleted, then press "Start" and wait for it to do it's magic.

Your photos got corrupted somehow. All your photos are saved on thememory card of your camera automatically. So you can recover photos frommemory card with photorecovery software.Recommend this one (simply because i was using itand it worked)-Tenorshare Data Recovery is a professional data recoverysoftware that can recover lost, corrupted,deleted or formatted pictures frommemory card of digital camera. But you had better have stopped using the memory card of yourcamera. Because, once your photos were overwritten by new ones,they are gonefor good. Here is a tutorial to guide you how to recoverphotos from digital camera.

Use recovery tool. But I suggest you to try 4Card Recovery so that you won't pay anything. Don't worry. Of course, it is an efficient recovery tool. The method to recover lost files is very simple, just four steps as the following lists.
Step one, download 4Card Recovery online and install it on your computer.
Step two, run it and choose the files that you want to recover, of course, you can choose recover all files in case of the omission of anything.
Step three, scan it by clicking the 'next' button and wait for about ten minutes.
Step four, save the recovered files on other part to avoid losing it again.
You can all the lost files back after finishing the four steps, so easy.
How to Recover Photos Videos off SD Card after Formatting Unformat SD...

What you need is just the recovery tool like 4Card Recovery. Try it. How to Recover Photos Videos off SD Card after Formatting Unformat SD...