Multimedia Guidelines

To ensure that the majority of potential users are able to access, view, and play the data, UIPress recommends that material be submitted in the specified 'preferred' formats.

Audio

Format Extension Details
MP3 MP3 MPEG-1 or MPEG-2 format required; highest possible quality required; audio bit rate at least 128 kbps


Video

Format Extension Details
MP4 MP4 Preferred video format; H.264+AAC, max target 720p
MPG MPG Acceptable video format; MPEG-1 or MPEG-2 format required; highest possible quality required
Apple QuickTime MOV Acceptable video format
Microsoft Audio/Video Interlaced AVI Acceptable video format

For video submissions, please follow these specifications as possible:

  • Frame rate: 15 frames per second minimum
  • Video codec: H.264 (+AAC) preferred
  • Video Bit rate: at least 260 kbps (750 kbps preferred)
  • Recommended frame size: 492x276
  • Duration: no more than 5 minutes

Please save your video(s)/animation(s) in one of the accepted formats if possible. Any alternative format supplied may be subject to conversion (if technically possible) prior to online publication.

Recommended upper limit

For ease of user download, we recommended that no single file be larger than 50 MB. When the size of a single file is bigger than this, some users may experience problems when downloading.