I just bought a new camera (Sony DSC-X100V) and every time I put a memory card in the slot, the camera says "Image database file error" and I can't take pictures. I have a -'ultimate sandisk 16GB SD Card' -HP 8 GB SD card the sandisk is brand new as well, and it wouldn't read it as well. New camera, new SD card, 'image database file error' I'm not sure what the problem is.

Would have been easier for me, when you had given the model number, but I give it a try. Most of the time you get these messages, when the file number is exceeding 999 or 9999. Or when the card or disk is full. Please try to recover all existing files from the memory (card and disk) and then try to format all memory devices.

This error indicates a memory problem.
The camera can't read or write data to the memory card. Try turning off and on the camera again, or take out and reinsert the memory card several times. Also remove and reinsert the battery.
It also can mean the memory card is not formatted, or there is a format error for an other reason. Format the internal memory or the memory card.
It also could mean the memory card is damaged and can't be used any more. Then you have to place a new memory card.

I hope something will help.
This is also in you user manual.

The manual on page 126 says:
Image Database File error Cannot recover Import all of the images to the computer with "PMB", and format the memory card or the internal memory (page 97). To view the images again with the camera, export the imported images to the camera with "PMB".

If you used the card before in the same camera, it should be compatible. If you can't save the pictures normally, us an external card reader, to save or recover and save the pictures first. Then do a format in the card reader (FAT or FAT32) and when you reinsert the card in the camera, again format the card, this time in the camera. (You always should format in the camera, the first time you use a memory card in a camera, or after you had a failure tithe the memory card.

Where did you check the memory card? in the computer? that is not the right place. Every card, old or new, you use in a camera for the first time should be formatted in the camera. First you must be 100% sure it is the correct card. Not every memory stick Sony has, can be used in every camera. So check the manual, what Duo, Pro or other memory card should go into your camera. Check if you have the correct card. Then if the card was used before, check if no pictures are on the card (external memory card reader) and save the pictures to the computer. Then format the card. If you can't format the card in the camera, try to format it in the external memory card reader. Use FAT32. Then reinsert the card in the camera and again try to format the card. If nothing goes, try another (correct) card to make sure nothing is wrong with the camera.

You need to format the card IN YOUR CAMERA using the camera's format feature (look for it in the menus). Make sure that you save all the enclosed pictures onto your computer first as formattin will erase the card.

Vikram, first of all take no more pictures with the memory card. You'll need to use recovery software to recover your photos. There are very many freeware options for your to choose (here's a short listing with reviews). You'll need to use your computer's card reader with this software. Now AFTER you've recovered your photo's, you'll need to initialize (format) the card in your camera (DON'T use your computer to initialize the card). This will erase the card, but it will also help prevent this instance from reoccurring. Look in your camera's menus for the format option.

Return for warranty replacement

Most laptops that have a memory card reader will only read these types of cards, without needing an adaptor: -SD card -MMC card -Sony Memory Stick or Memory Stick Pro cards -XD cards
However, you have a MS Pro Duo card, although it fits into the card reader slot, the card is a lot thinner than what's expected, so the laptop won't be able to read it.
You need to put the Pro Duo card into the stanard size MS Pro caard adaptor. See attached image.
Hope this helps.

Have you formatted the card in the camera ?

I was having the same problem with my 4GB memory stick pro duo, when i took more than 50 pictures with my camera (dsc-w90) i would get the blue screen with the file error message. I'm guessing you bought the memory stick on ebay right? I bought mines there and it turns out it's a fake one. If you also bought it there then you most likely have a fake memory stick because I found out that most of the memory sticks sold on ebay are fake, to help you figure out if you have a fake one or not check out this guide or google fake memory stick pro duo. http://reviews.ebay.com/FAKE-Sony-Memory-Stick-Pro-Duo-MagicGate-Cards-Exposed_W0QQugidZ10000000001236041