I haven’t found anything through searches I’ve done that this is an available feature so… I think it is necessary to have a feature that allows you to lock a MYO card once it has been linked/ has a recording on it so that you or your kids don’t accidentally delete an important memory. Ex: I have some with recordings from my parents to my kids. As cautious as you can be with this, human error can happen and I’d hate to lose such wonderful memories. I wish they would create the ability to lock the card somehow or at least ask 2-3 times- Are you sure you want to link a new card/ record etc….. It would just be a nice thing to incorporate for all MYO cards.