Make 2 x video files play in mobile version of html5 player.

I need two video files converted to a format suitable to be played in a html5 mobile player. You will need to provide me a link that I can open in a mobile to demonstrate that it's playing. These need to be compatible with the mobile version of the HTML5 player. The videos are for a promotional purpose.

Ideal Skills and Experience:
- Proficiency in video editing and conversion
- Familiarity with HTML5 player requirements
- Experience with promotional video content