Support unsplitted 3D videos

[Firepal]

it would be handy to just allow people to play SBS video without having to do the splitting first. even if you can only have files under 4GB, it should be permitted

[Telicor]

I have tested multiple files on 3D videos and the player accepts a sing file for 3D videos, but it needs the 2 files of Left and Right when it converts to combine. The player doesn't support the native 3D format from the Disc, but this would have been required for other stereoscopic devices that have the ability of 3D. The file needs to be under 5GB to run on the 3DS in order to function. MPEG-4 or h263p are preferred if you want smooth seeking and smooth playback.

[Firepal]

the player accepts a single file for 3D videos, but it needs the 2 files of Left and Right when it converts to combine

Your message is unclear.
This player currently requires the Left and Right videos to exist as separate files.
When I last checked, a single-file 3D video is decoded as 2D with no modification.

MPEG-4 or h263p are preferred if you want smooth seeking and smooth playback

Not really relevant to the conversation but it is good advice.
But H264 is optimal on the New 3DS because it has fast decoder hardware while allowing same quality for smaller bitrate.

[Firepal]

I read the 3D video conversion script in the README file and I did not know the player used video tracks for 3D