This tutorial explains how to use the diffing tool on Amara to compare two revisions.

To learn more about subtitling in the OTP, check out the other tutorials in this channel, as well as the main OTP resource guide on OTPedia: http://translations.ted.org/wiki/OTP_Resources:_Main_guide

This video has been created for the volunteers working in the TED Open Translation Project. The TED Open Translation Project brings TEDTalks, TED-Ed lessons and TEDxTalks beyond the English-speaking world by offering subtitles, interactive transcripts and the ability for any talk to be translated by volunteers worldwide.
Learn more at http://www.ted.com/participate/translate