2 videos in a row, sound not working on second one
http://fw.to/Y6d9bDb
Go to video tab, then click play. After preroll is finished, second video will start and it does not have sound. When that video is played without preroll it has sound and works properly.
Please make sure you are using these settings in your encoding: http://support.jwplayer.com/customer/portal/articles/1403635-media-format-reference#video/. Some browsers are more stringent than others about encoding requirements. I typically use Handbrake (free on Mac) to encode video files.
Here are a few screenshots of my encoding settings:
http://cl.ly/image/0g1D3o3b1Z2v
http://cl.ly/image/3Z0d3y0u3F1I
ffmpeg is also a great solution to properly encoding h264 mp4’s -