In this paper, we describe two examples of implementations of the Media Fragments URI specification which is currently being developed by the W3C Media Fragments Working Group. The group's mission is to create standard addressing schemes for media fragments on the Web using Uniform Resource Identifiers (URIs). We describe two scenarios to illustrate the implementations. More specifically, we show how User Agents (UA) will either be able to resolve media fragment URIs without help from the server, or will make use of a media fragments-aware server. Finally, we present some ongoing discussions and issues regarding the implementation of the Media Fragments specification. Categories and Subject Descriptors H.5.1 [Multimedia Information System]: Audio, Video and Hypertext Interactive Systems; I.7.2 [Document Preparation]: Languages and systems, Markup languages, Multi/mixed media, Standards General Terms Languages, Standardization, Hyperlinks, Web, URI, HTTP Keywords Media Fragments, ...