New User:

1.(high impotance):
  I want to view the playlists

2.(high impotance):
  I want to open the playlists and choose a video to watch

3.(high impotance):
  I want to add a new timestamp to the video without posting it to youtube

4.(medium importance):
  I want to add a new playlist to my collection of playlists

5.(medium importance)
  I want my timestamps and playlists to be saved (I need to sign in to an account)

Returning User:

6.(high importance)
  I want to log in to my account

7.(high impotance)
  I want to see my saved playlists and timestamps

8.(medium importance)
  I want to remove playlists from my collection

9.(medium importance)
  I want to share my plylists and timestamps with others

Administrator:

10.(high importance)
  I want to view all user accounts

11.(high importance)
  I want to know who posted a timestamp and which one.

12.(medium importance)
  I want to know when a new playlist is added an who did it.