Clarify that a change in the PAC base row should be replicated through a new region and splitting any overlapping caption durations. Also clarify that this is only necessary for a new base row.
--- a/608toVTT/608toVTT.html Fri Jan 04 21:55:05 2013 +1100
+++ b/608toVTT/608toVTT.html Tue Jan 22 16:17:21 2013 +1100
@@ -435,7 +435,7 @@
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- Note that Regions in WebVTT cannot be moved at this time, so if there is a need to move to a different on-screen location, it is best to define another Region for that and copy the caption text.
+ Note that Regions in WebVTT cannot be moved at this time, so if there is a need to move to a different on-screen location, because a different PAC row number is given, it is best to define another Region for that location and copy the caption text. Such a region move happens only if the base row of the PAC of a caption is different from the previous caption's PAC base row. A different PAC indent can be dealt with within the existing region by simply applying the indent as a position indent to the caption cue as described in the section on "Positioning in CEA-608".
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