Check which version of Action Replay MAX you’re using. If it’s 3.14 or older, this could be the problem. Contact our support team at support@datel.co.uk, explaining which version of MAX you have (the version number is on the underside of the disc, near the hole) and how long you’ve had it.
Alternatively, reformat your card by going into MAX Memory Manager (which is part of Action Replay MAX), highlighting the card in question and pressing ‘Square’. This wipes your card clean, removing any corrupt data that may be causing freezes. Remember, though, if there are saves on there you want to keep, you must transfer them to another card first.