Here’s what iOS supports.
H.264 video, up to 768 Kbps, 320 by 240 pixels, 30 frames per second, Baseline 
Profile up to Level 1.3 with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio 
in .m4v, .mp4, and .mov file formats
MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple 
Profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, 
and .mov file formats


Compressor can turn around video formats for iOS delivery. For something more 
robust, you can use something like HandBrake which is somewhat accessible. 

If anyone knows whether Compressor is accessible, I’d love to know.

Kevin
> On Nov 28, 2015, at 12:09 PM, erik burggraaf <e...@erik-burggraaf.com> wrote:
> 
> File formats is one area where the IoS devices really fall over.  As far as I 
> know, the deal is that you can only play mp4 files, period.  No avi, no .mov, 
> no .mpeg,, and no streaming of authored DVD's.
> 
> Unfortunately, converting video formats is a very inexact science.  The 
> various formats all seem to handle video streaming so differently that 
> preserving the aspect ratio and other atributes so that the video still looks 
> good to the sighted eye is difficult to impossible and that really has to be 
> taken into consideration when choosing a stream converter.  Even if you found 
> a high quality, accessible video converter, it could take almost as long as 
> real time to make the conversion.  You need to count on at least half of real 
> time depending on your system, the software, and the source and destination 
> formats.  It's not undertaken lightly.
> 
> Best,
> 
> Erik Burggraaf
> 
> 
>> On Nov 28, 2015, at 4:19 AM, Maria Chapman <bubbygirl1...@gmail.com 
>> <mailto:bubbygirl1...@gmail.com>> wrote:
>> 
>> HI.  wondering what video format the iPhone will play?  I have vlc.  Will I 
>> be able to play mp4? Speaking of which does anyone know of an acessible 
>> converter for the mac?
>> 
>> thanks
>> 
>> please send answers to the list.
>> Maria
>> 
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