SD Card corrupted

[jason-psm]

I have an xpreria m for 1 month now however this past day while taking some pictures an unknown error is popping out then eventually corrupting the whole sd card. It can no longer be seen in the phone as well as on my laptop. Even tried to use an sd card adapter to directly connect it to my laptop but it would take at most 10 minutes to be recognized and I cannot format it. The bad thing is that when I don't know the problem, I tried to insert another sd card on my xperia and when it can't read the sd card too, it also corrupted it. This other sd card is working fine on my blackberry but just few minutes inserted in my xperia m, it got corrupted luckily it is not as bad as my first sd card as I have already formatted it on my computer. Is this an issue regarding the phone or firmware? 

[Cannonball2]

I have an Xperia M and I have a 16Gb Verbatim memory card fitted. A few weeks ago I had a message saying that the card was corrupted and couldn't be read. I was able to format it in the phone and reloaded everything and it was OK until this weekend. I got a message that the memory was removed suddenly even though it was still in the phone. I switched the phone on and off and it was visible again. Unfortunately now the card is not seen by the phone. I tried the 16Gb memory card in another phone and again was not detected. I put an 8Gb Sandisk card in the phone and it is seen OK.

Is there any way around this or do I need to buy another card? Will this happen again?