Hi, Can someone please help me with this: I am thinking of buying a new tablet but I need it to be able to play files that are similar to those used in museums. It is a file that will be activated in the touchscreen tablet, with icons to be selected and the respective audio/sound recording will play. Please tell me what kind of file name/format this is?? Need to be able to communicate with the sellers online before I make the purchase of 8 tablets!! Many thanks!!