23. The method according to claim 1 , wherein the startmode attribute can take one of the following values: a restart value, which indicates that the media item should always start from the beginning, a resume default value, which indicates that the media items should always start from the position it stopped, a laststop value, which indicates that the media item should always start at the media time the last continuous media item contained in the same choose element stopped, a playtime value, which indicates that the media item should always start at the time, which is the combined playtime of all media items contained in the choose element since the choose element is started, and a contplaytime value, which indicates that the media item should always start at the time, which is the combined playtime of all continuous media items contained in the choose element since the choose element is started.
23. The method according to claim 1 , wherein the startmode attribute can take one of the following values: a restart value, which indicates that the media item should always start from the beginning, a resume default value, which indicates that the media items should always start from the position it stopped, a laststop value, which indicates that the media item should always start at the media time the last continuous media item contained in the same choose element stopped, a playtime value, which indicates that the media item should always start at the time, which is the combined playtime of all media items contained in the choose element since the choose element is started, and a contplaytime value, which indicates that the media item should always start at the time, which is the combined playtime of all continuous media items contained in the choose element since the choose element is started. 24. The method according to claim 23 , wherein the Adaptation Module supplies the choose element with an onremove attribute specifying what happens after a continuous media item is played back.