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Formats for uploading content

The Layers of London project recommends using theĀ Heritage Lottery Fund: Using digital technology in heritage projects-Good practice guidance.

For uploading new content to records, it is recommended that:

  • still images should have a horizontal resolution of 1024 pixels;
  • audio should be in WAV format, 44.1kHz, 16-bit; and
  • moving images should be MPEG-4 compression at a target bitrate of 56Mbit/s, progressive,
    720 pixels horizontal resolution, 4:2:2 chroma subsampling, with audio as above.

Providing only lower resolution material free of charge provides less public benefit and it is
good practice in all cases to create a high resolution master.