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destruk
Level 10

MP4 file size limitation?

With an encoded, streaming mp4 file is there a 4GB size limit to play back on Roku?
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3 Replies
RokuMarkn
Level 7

Re: MP4 file size limitation?

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
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destruk
Level 10

Re: MP4 file size limitation?

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.
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Arwen
Level 7

Re: MP4 file size limitation?

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...
Arwen Evenstar
Middle Earth
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