problems w video presentation using media_player_mpy
I am creating an experiment in which I want to present 52 videos at 30 seconds each. The videos are (currently) all .avi files and quite large (around 500 MB). Therefore, I have added them all to the experiment folder (instead of loading them directly into the file pool) and am using legacy as a backend. I tried to display them using the media_player_mpy plugin but sadly that drops a lot of frames. Also, there is a noticeable time lag from the previous slide to the one where the video presentation starts (where I assume the file is being loaded).
I have tried creating this experiment with an older OS version earlier this year and used the vlc player and alternatively the media player plugin but didn't get much luckier either. I've also been through several file formats including .flv and .mov and tried creating the experiment in two "blocks" (that is creating two separate experiments to keep the overall size of the file pool smaller) but none of that really gave me a smooth video presentation. I had hoped that by shortening the videos (they used to be 2 mins before I cut them to 30 secs) and using the new version of OS maybe this would solve itself but I still have roughly the same problems.
So if anyone has advice on how I can display my videos so they run smoothly, I would be very very greateful.
Is there a better file format I can use or a way to somehow pre-load the videos? Participants fill out a number of questions after each video, so maybe during this time the next video could be pre-loaded somehow? (I have no idea if this is possible in OS, but my supervisor keeps pointing out to me that this would be the go-to solution in presentation)
Thanks a lot in advance for any advice!