c608;EIA-608
c708;EIA-708
subp;VobSub;;The same subtitle format used on DVDs;
text;Apple text;;;http://www.apple.com/quicktime/download/standalone.html
sbtl;Apple text;(iPhone);;http://www.apple.com/quicktime/download/standalone.html
dfxp;TTML
tx3g;Timed text;;;http://www.apple.com/quicktime/download/standalone.html
enct;(Encrypted);;;
