Abstract: A method and a system for editing a multimedia file are provided, wherein the multimedia file provided by a server is edited and played by a client device. In the present method, the multimedia file provided by the server is downloaded and played. At least one edit operation for modifying the multimedia file is received. The edit operation is converted into a plurality of edit commands recognizable to the server. The edit commands are sent to the server to request the server to modify the multimedia file accordingly. The modified multimedia file is downloaded from the server and played again.

Abstract: A method and a system for playing a multimedia file and attached information thereof, suitable for a multimedia file play system comprising a service end and a client end are provided. In the present method, the client end sends a play request of a multimedia file to the service end. The service end searches for attached information of the multimedia file according to the received play request, creates a resource item in a description file to add a link of the attached information, creates an extended field in the resource item to add identification information of the attached information, and returns the description file to the client end. The client end identifies the attached information according to the identification information and downloads the multimedia file and the attached information thereof according to the link, so as to play the multimedia and the attached information.

Abstract: A digital media providing device comprises a first interface for coupling to a first storage device storing a first media data of a first encoding format, a second interface for coupling to a second storage device storing a program code, and a third interface for coupling to a transcoding device. The transcoding device executes the program code when the third interface is coupled to the transcoding device, converts the first media data in to a second media data of a second encoding format, and transmits the second media data to a digital content receiving device.