1: /usr/share/doc/mythtv-backend/contrib/optimize_mythdb.pl
2: find /mediat/mythtv/nauhoitukset -name '*20100216*mpg' -exec mythtranscode --mpeg2 --buildindex --allkeys --showprogress --infile {} \;

http://www.mythtv.org/wiki/Repairing_the_Seektable