Forum Discussion

destruk's avatar
destruk
Streaming Star
12 years ago

MP4 file size limitation?

With an encoded, streaming mp4 file is there a 4GB size limit to play back on Roku?

3 Replies

  • Larger files should not be a problem, as long as they are encoded correctly with 64 bit values where appropriate (for example, with co64 atoms rather than stco, etc).

    --Mark
  • destruk's avatar
    destruk
    Streaming Star
    The file in question is 4.6GB, and I don't get any metadata from it with mediainfo, and it won't play in windows media player. "Windows media player encountered a problem while playing the file"
    ffmpeg says the moov atom isn't found, ... perhaps just a corrupt file? We're going to re-encode a few different ways and see if anything for this plays. Thanks for the response.
  • Arwen's avatar
    Arwen
    Channel Surfer
    You don't mention which encoder you are using.

    With Handbrake, I tend to default using 32 bit MP4 files for DVD T.V. series episodes, as they
    tend to be less than 1GB. (I do have a few that were 1.2GBs...) But for movies, I default to 64
    bit MP4 files. Which is kind of over-kill for DVD movies when using the h.264 advanced encoder,
    since that drops the file size to to at least 1/4 of the MPEG-2 source.

    I did run across a problem with 64 bit MP4 files, but I can't remember where. Perhaps it was
    not the encoded files themselves, but FAT-32 file system limit of 4GB maximum file size.Or
    maybe it was my old WebOS tablet...