Bought these from Play.com a year or so ago to use in my PSPs. Havent used them for ages though so selling them.
They have both been used for playing games off without any problems, each one has probably has about 20-25 hours of use (took them on holiday and not been used since).
Looking for £10.50 each delivered (payment via paypal gift or buyer to pay fees), or both for £20.
Or would trade for a 16GB SDHC card.