A connector for receiving a microcircuit card, such that the card is held in a seat of the housing of this connector by a release which overhangs the seat on a first edge and on the other side by a tongue situated on a flexible girder on a second opposite edge. Middleware instances are created for each user group defined in the media-on-demand system. The computing device may be used to navigate the multimedia, annotate the text transcription, achieve synchronous play of the multimedia, and communicate to another computer manipulations performed on the text or multimedia.