Versions of subtitleeditor build against gstreamer 0.10 used to crash frequently, I advise to use a new 0.50 version (or trunk version), instruction for compiling here: http://askubuntu.com/questions/504620/how-can-i-get-working-subtitleeditor-in-ubuntu-14-04
Versions of subtitleeditor build against gstreamer 0.10 used to crash frequently, I advise to use a new 0.50 version (or trunk version), instruction for compiling here: http:// askubuntu. com/questions/ 504620/ how-can- i-get-working- subtitleeditor- in-ubuntu- 14-04